131521255532 has 12 divisors (see below), whose sum is σ = 238098824880. Its totient is φ = 63493019856.

The previous prime is 131521255529. The next prime is 131521255543. The reversal of 131521255532 is 235552125131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131521255492 and 131521255501.

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, 566901848 + ... + 566902079.

It is an arithmetic number, because the mean of its divisors is an integer number (19841568740).

Almost surely, 2^131521255532 is an apocalyptic number.

It is an amenable number.

131521255532 is a deficient number, since it is larger than the sum of its proper divisors (106577569348).

131521255532 is a wasteful number, since it uses less digits than its factorization.

131521255532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133803960 (or 1133803958 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The spelling of 131521255532 in words is "one hundred thirty-one billion, five hundred twenty-one million, two hundred fifty-five thousand, five hundred thirty-two".