131908104 has 24 divisors (see below), whose sum is σ = 357251310. Its totient is φ = 43969344.

The previous prime is 131908097. The next prime is 131908157. The reversal of 131908104 is 401809131.

It can be written as a sum of positive squares in only one way, i.e., 127916100 + 3992004 = 11310^2 + 1998^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 915957 + ... + 916100.

Almost surely, 2^131908104 is an apocalyptic number.

It is an amenable number.

131908104 is an abundant number, since it is smaller than the sum of its proper divisors (225343206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131908104 is a wasteful number, since it uses less digits than its factorization.

131908104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832069 (or 1832062 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 131908104 is about 11485.1253367127. The cubic root of 131908104 is about 509.0461525511.

The spelling of 131908104 in words is "one hundred thirty-one million, nine hundred eight thousand, one hundred four".