131225551504 has 20 divisors (see below), whose sum is σ = 254501519020. Its totient is φ = 65547740160.

The previous prime is 131225551469. The next prime is 131225551519. The reversal of 131225551504 is 405155522131.

It can be written as a sum of positive squares in 2 ways, for example, as 12647251600 + 118578299904 = 112460^2 + 344352^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131225551504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4048077 + ... + 4080364.

It is an arithmetic number, because the mean of its divisors is an integer number (12725075951).

Almost surely, 2^131225551504 is an apocalyptic number.

It is an amenable number.

131225551504 is a deficient number, since it is larger than the sum of its proper divisors (123275967516).

131225551504 is a wasteful number, since it uses less digits than its factorization.

131225551504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8129458 (or 8129452 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 131225551504 in words is "one hundred thirty-one billion, two hundred twenty-five million, five hundred fifty-one thousand, five hundred four".