131645125604 has 6 divisors (see below), whose sum is σ = 230378969814. Its totient is φ = 65822562800.

The previous prime is 131645125537. The next prime is 131645125631. The reversal of 131645125604 is 406521546131.

131645125604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 120652022500 + 10993103104 = 347350^2 + 104848^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16455640697 + ... + 16455640704.

It is an arithmetic number, because the mean of its divisors is an integer number (38396494969).

Almost surely, 2^131645125604 is an apocalyptic number.

It is an amenable number.

131645125604 is a deficient number, since it is larger than the sum of its proper divisors (98733844210).

131645125604 is a wasteful number, since it uses less digits than its factorization.

131645125604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32911281405 (or 32911281403 counting only the distinct ones).

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

The spelling of 131645125604 in words is "one hundred thirty-one billion, six hundred forty-five million, one hundred twenty-five thousand, six hundred four".