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136513141 = 1297105253
BaseRepresentation
bin10000010001100…
…00011001110101
3100111212120211021
420020300121311
5234421410031
621313541141
73245225332
oct1010603165
9314776737
10136513141
1170070386
12398747b1
132238920b
14141b7989
15beb8511
hex8230675

136513141 has 4 divisors (see below), whose sum is σ = 136619692. Its totient is φ = 136406592.

The previous prime is 136513123. The next prime is 136513159. The reversal of 136513141 is 141315631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141315631 = 711990361.

It is an interprime number because it is at equal distance from previous prime (136513123) and next prime (136513159).

It can be written as a sum of positive squares in 2 ways, for example, as 81974916 + 54538225 = 9054^2 + 7385^2 .

It is a cyclic number.

It is not a de Polignac number, because 136513141 - 25 = 136513109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136913141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51330 + ... + 53923.

It is an arithmetic number, because the mean of its divisors is an integer number (34154923).

Almost surely, 2136513141 is an apocalyptic number.

It is an amenable number.

136513141 is a deficient number, since it is larger than the sum of its proper divisors (106551).

136513141 is a wasteful number, since it uses less digits than its factorization.

136513141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106550.

The product of its digits is 1080, while the sum is 25.

The square root of 136513141 is about 11683.8838148965. The cubic root of 136513141 is about 514.9022857940.

Adding to 136513141 its reverse (141315631), we get a palindrome (277828772).

The spelling of 136513141 in words is "one hundred thirty-six million, five hundred thirteen thousand, one hundred forty-one".

Divisors: 1 1297 105253 136513141