465656131 has 4 divisors (see below), whose sum is σ = 465699312. Its totient is φ = 465612952.

The previous prime is 465656117. The next prime is 465656173. The reversal of 465656131 is 131656564.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 465656131 - 2¹¹ = 465654083 is a prime.

It is a super-2 number, since 2×465656131² = 433671264675778322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465656101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9765 + ... + 32041.

It is an arithmetic number, because the mean of its divisors is an integer number (116424828).

Almost surely, 2^465656131 is an apocalyptic number.

465656131 is a deficient number, since it is larger than the sum of its proper divisors (43181).

465656131 is a wasteful number, since it uses less digits than its factorization.

465656131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43180.

The product of its digits is 64800, while the sum is 37.

The square root of 465656131 is about 21579.0669631474. The cubic root of 465656131 is about 775.0953089861.

The spelling of 465656131 in words is "four hundred sixty-five million, six hundred fifty-six thousand, one hundred thirty-one".