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137065061 = 719580723
BaseRepresentation
bin10000010101101…
…11001001100101
3100112220121220202
420022313021211
5240042040221
621333440245
73253014410
oct1012671145
9315817822
10137065061
1170408011
1239aa0085
13225204b3
14142bcb77
15c076d0b
hex82b7265

137065061 has 4 divisors (see below), whose sum is σ = 156645792. Its totient is φ = 117484332.

The previous prime is 137065013. The next prime is 137065063. The reversal of 137065061 is 160560731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160560731 = 434936919.

It is not a de Polignac number, because 137065061 - 26 = 137064997 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 (137065063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9790355 + ... + 9790368.

It is an arithmetic number, because the mean of its divisors is an integer number (39161448).

Almost surely, 2137065061 is an apocalyptic number.

It is an amenable number.

137065061 is a deficient number, since it is larger than the sum of its proper divisors (19580731).

137065061 is an equidigital number, since it uses as much as digits as its factorization.

137065061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19580730.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 137065061 is about 11707.4788490093. The cubic root of 137065061 is about 515.5952660711.

The spelling of 137065061 in words is "one hundred thirty-seven million, sixty-five thousand, sixty-one".

Divisors: 1 7 19580723 137065061