131455632 has 120 divisors (see below), whose sum is σ = 431034912. Its totient is φ = 34137600.

The previous prime is 131455627. The next prime is 131455651. The reversal of 131455632 is 236554131.

It is a self number, because there is not a number n which added to its sum of digits gives 131455632.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23332 + ... + 28412.

Almost surely, 2^131455632 is an apocalyptic number.

131455632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131455632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215517456).

131455632 is an abundant number, since it is smaller than the sum of its proper divisors (299579280).

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

131455632 is a wasteful number, since it uses less digits than its factorization.

131455632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5104 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 131455632 is about 11465.4102412430. The cubic root of 131455632 is about 508.4634413414.

The spelling of 131455632 in words is "one hundred thirty-one million, four hundred fifty-five thousand, six hundred thirty-two".