131887772 has 12 divisors (see below), whose sum is σ = 232961400. Its totient is φ = 65327376.

The previous prime is 131887753. The next prime is 131887783. The reversal of 131887772 is 277788131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153647 + ... + 154502.

It is an arithmetic number, because the mean of its divisors is an integer number (19413450).

Almost surely, 2^131887772 is an apocalyptic number.

It is an amenable number.

131887772 is a deficient number, since it is larger than the sum of its proper divisors (101073628).

131887772 is a wasteful number, since it uses less digits than its factorization.

131887772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308260 (or 308258 counting only the distinct ones).

The product of its digits is 131712, while the sum is 44.

The square root of 131887772 is about 11484.2401577118. The cubic root of 131887772 is about 509.0199968213.

The spelling of 131887772 in words is "one hundred thirty-one million, eight hundred eighty-seven thousand, seven hundred seventy-two".