131304132 has 24 divisors (see below), whose sum is σ = 340418400. Its totient is φ = 43768008.

The previous prime is 131304113. The next prime is 131304139. The reversal of 131304132 is 231403131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (131304139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607782 + ... + 607997.

It is an arithmetic number, because the mean of its divisors is an integer number (14184100).

Almost surely, 2^131304132 is an apocalyptic number.

131304132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131304132 is an abundant number, since it is smaller than the sum of its proper divisors (209114268).

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

131304132 is a wasteful number, since it uses less digits than its factorization.

131304132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215792 (or 1215784 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131304132 is about 11458.8015080112. The cubic root of 131304132 is about 508.2680349221.

Adding to 131304132 its reverse (231403131), we get a palindrome (362707263).

The spelling of 131304132 in words is "one hundred thirty-one million, three hundred four thousand, one hundred thirty-two".