131512832 has 80 divisors (see below), whose sum is σ = 301989600. Its totient is φ = 56586240.

The previous prime is 131512793. The next prime is 131512841. The reversal of 131512832 is 238215131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106394 + ... + 107622.

It is an arithmetic number, because the mean of its divisors is an integer number (3774870).

Almost surely, 2^131512832 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 131512832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150994800).

131512832 is an abundant number, since it is smaller than the sum of its proper divisors (170476768).

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

131512832 is a wasteful number, since it uses less digits than its factorization.

131512832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1261 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 131512832 is about 11467.9044293192. The cubic root of 131512832 is about 508.5371795069.

Adding to 131512832 its reverse (238215131), we get a palindrome (369727963).

The spelling of 131512832 in words is "one hundred thirty-one million, five hundred twelve thousand, eight hundred thirty-two".