131377808 has 20 divisors (see below), whose sum is σ = 258033708. Its totient is φ = 64788480.

The previous prime is 131377793. The next prime is 131377811. The reversal of 131377808 is 808773131.

It can be written as a sum of positive squares in 2 ways, for example, as 110838784 + 20539024 = 10528^2 + 4532^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55073 + ... + 57408.

Almost surely, 2^131377808 is an apocalyptic number.

It is an amenable number.

131377808 is a deficient number, since it is larger than the sum of its proper divisors (126655900).

131377808 is a wasteful number, since it uses less digits than its factorization.

131377808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112562 (or 112556 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 131377808 is about 11462.0158785442. The cubic root of 131377808 is about 508.3630818268.

The spelling of 131377808 in words is "one hundred thirty-one million, three hundred seventy-seven thousand, eight hundred eight".