131416388 has 24 divisors (see below), whose sum is σ = 252611520. Its totient is φ = 59542560.

The previous prime is 131416367. The next prime is 131416403. The reversal of 131416388 is 883614131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35843 + ... + 39338.

It is an arithmetic number, because the mean of its divisors is an integer number (10525480).

Almost surely, 2^131416388 is an apocalyptic number.

It is an amenable number.

131416388 is a deficient number, since it is larger than the sum of its proper divisors (121195132).

131416388 is a wasteful number, since it uses less digits than its factorization.

131416388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75227 (or 75225 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 131416388 is about 11463.6987050428. The cubic root of 131416388 is about 508.4128383991.

The spelling of 131416388 in words is "one hundred thirty-one million, four hundred sixteen thousand, three hundred eighty-eight".