131561264504 has 32 divisors (see below), whose sum is σ = 261213018480. Its totient is φ = 61905206784.

The previous prime is 131561264491. The next prime is 131561264531. The reversal of 131561264504 is 405462165131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573154 + ... + 1654670.

Almost surely, 2^131561264504 is an apocalyptic number.

It is an amenable number.

131561264504 is a deficient number, since it is larger than the sum of its proper divisors (129651753976).

131561264504 is a wasteful number, since it uses less digits than its factorization.

131561264504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93407 (or 93403 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 131561264504 in words is "one hundred thirty-one billion, five hundred sixty-one million, two hundred sixty-four thousand, five hundred four".