131978882 has 8 divisors (see below), whose sum is σ = 226249536. Its totient is φ = 56562372.

The previous prime is 131978863. The next prime is 131978953. The reversal of 131978882 is 288879131.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4713518 + ... + 4713545.

It is an arithmetic number, because the mean of its divisors is an integer number (28281192).

Almost surely, 2^131978882 is an apocalyptic number.

131978882 is a deficient number, since it is larger than the sum of its proper divisors (94270654).

131978882 is an equidigital number, since it uses as much as digits as its factorization.

131978882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9427072.

The product of its digits is 193536, while the sum is 47.

The square root of 131978882 is about 11488.2062133303. The cubic root of 131978882 is about 509.1371826580.

The spelling of 131978882 in words is "one hundred thirty-one million, nine hundred seventy-eight thousand, eight hundred eighty-two".