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131350601 = 1011300501
BaseRepresentation
bin1111101010001…
…00000001001001
3100011011022011002
413311010001021
5232111204401
621011144345
73153314234
oct765040111
9304138132
10131350601
1168164718
1237ba50b5
132129c465
141363241b
15b7e8a6b
hex7d44049

131350601 has 4 divisors (see below), whose sum is σ = 132651204. Its totient is φ = 130050000.

The previous prime is 131350577. The next prime is 131350603. The reversal of 131350601 is 106053131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106053131 = 1011050031.

It can be written as a sum of positive squares in 2 ways, for example, as 89113600 + 42237001 = 9440^2 + 6499^2 .

It is a cyclic number.

It is not a de Polignac number, because 131350601 - 210 = 131349577 is a prime.

It is a super-2 number, since 2×1313506012 = 34505960766122402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131350603) 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, 650150 + ... + 650351.

It is an arithmetic number, because the mean of its divisors is an integer number (33162801).

Almost surely, 2131350601 is an apocalyptic number.

It is an amenable number.

131350601 is a deficient number, since it is larger than the sum of its proper divisors (1300603).

131350601 is a wasteful number, since it uses less digits than its factorization.

131350601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300602.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 131350601 is about 11460.8289839784. The cubic root of 131350601 is about 508.3279871396.

The spelling of 131350601 in words is "one hundred thirty-one million, three hundred fifty thousand, six hundred one".

Divisors: 1 101 1300501 131350601