131557712 has 60 divisors (see below), whose sum is σ = 301168224. Its totient is φ = 55186560.

The previous prime is 131557711. The next prime is 131557721. The reversal of 131557712 is 217755131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131557711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27533 + ... + 31955.

Almost surely, 2^131557712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131557712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150584112).

131557712 is an abundant number, since it is smaller than the sum of its proper divisors (169610512).

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

131557712 is a wasteful number, since it uses less digits than its factorization.

131557712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468 (or 4449 counting only the distinct ones).

The product of its digits is 7350, while the sum is 32.

The square root of 131557712 is about 11469.8610279288. The cubic root of 131557712 is about 508.5950206380.

The spelling of 131557712 in words is "one hundred thirty-one million, five hundred fifty-seven thousand, seven hundred twelve".