131977008 has 30 divisors (see below), whose sum is σ = 369352724. Its totient is φ = 43992288.

The previous prime is 131977007. The next prime is 131977031. The reversal of 131977008 is 800779131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (131977007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 458110 + ... + 458397.

Almost surely, 2^131977008 is an apocalyptic number.

131977008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131977008 is an abundant number, since it is smaller than the sum of its proper divisors (237375716).

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

131977008 is a wasteful number, since it uses less digits than its factorization.

131977008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916521 (or 916512 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 131977008 is about 11488.1246511343. The cubic root of 131977008 is about 509.1347728594.

The spelling of 131977008 in words is "one hundred thirty-one million, nine hundred seventy-seven thousand, eight".