131936408 has 16 divisors (see below), whose sum is σ = 249784080. Its totient is φ = 65327328.

The previous prime is 131936407. The next prime is 131936417. The reversal of 131936408 is 804639131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131936407) 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, 79235 + ... + 80882.

It is an arithmetic number, because the mean of its divisors is an integer number (15611505).

Almost surely, 2^131936408 is an apocalyptic number.

It is an amenable number.

131936408 is a deficient number, since it is larger than the sum of its proper divisors (117847672).

131936408 is a wasteful number, since it uses less digits than its factorization.

131936408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160226 (or 160222 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 131936408 is about 11486.3574731070. The cubic root of 131936408 is about 509.0825592400.

The spelling of 131936408 in words is "one hundred thirty-one million, nine hundred thirty-six thousand, four hundred eight".