131240032 has 96 divisors (see below), whose sum is σ = 329011200. Its totient is φ = 51085440.

The previous prime is 131240003. The next prime is 131240041. The reversal of 131240032 is 230042131.

It is a happy number.

It is a super-2 number, since 2×131240032² = 34447891998722048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 131239988 and 131240015.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 120193 + ... + 121279.

It is an arithmetic number, because the mean of its divisors is an integer number (3427200).

Almost surely, 2^131240032 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 131240032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164505600).

131240032 is an abundant number, since it is smaller than the sum of its proper divisors (197771168).

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

131240032 is a wasteful number, since it uses less digits than its factorization.

131240032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 131240032 is about 11456.0041899434. The cubic root of 131240032 is about 508.1853127625.

Adding to 131240032 its reverse (230042131), we get a palindrome (361282163).

The spelling of 131240032 in words is "one hundred thirty-one million, two hundred forty thousand, thirty-two".