131143632 has 40 divisors (see below), whose sum is σ = 339290784. Its totient is φ = 43649664.

The previous prime is 131143613. The next prime is 131143633. The reversal of 131143632 is 236341131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131143633) 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, 39343 + ... + 42545.

Almost surely, 2^131143632 is an apocalyptic number.

131143632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131143632 is an abundant number, since it is smaller than the sum of its proper divisors (208147152).

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

131143632 is a wasteful number, since it uses less digits than its factorization.

131143632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067 (or 4061 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 131143632 is about 11451.7960163461. The cubic root of 131143632 is about 508.0608561645.

Adding to 131143632 its reverse (236341131), we get a palindrome (367484763).

The spelling of 131143632 in words is "one hundred thirty-one million, one hundred forty-three thousand, six hundred thirty-two".