131401232 has 20 divisors (see below), whose sum is σ = 255418176. Its totient is φ = 65486880.

The previous prime is 131401229. The next prime is 131401267. The reversal of 131401232 is 232104131.

131401232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131401232² = 34532567542235648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131401232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8228 + ... + 18179.

Almost surely, 2^131401232 is an apocalyptic number.

It is an amenable number.

131401232 is a deficient number, since it is larger than the sum of its proper divisors (124016944).

131401232 is a wasteful number, since it uses less digits than its factorization.

131401232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26726 (or 26720 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131401232 is about 11463.0376427891. The cubic root of 131401232 is about 508.3932928885.

Adding to 131401232 its reverse (232104131), we get a palindrome (363505363).

The spelling of 131401232 in words is "one hundred thirty-one million, four hundred one thousand, two hundred thirty-two".