131132442 has 16 divisors (see below), whose sum is σ = 299731392. Its totient is φ = 37466400.

The previous prime is 131132437. The next prime is 131132483. The reversal of 131132442 is 244231131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561059 + ... + 1561142.

It is an arithmetic number, because the mean of its divisors is an integer number (18733212).

Almost surely, 2^131132442 is an apocalyptic number.

131132442 is an abundant number, since it is smaller than the sum of its proper divisors (168598950).

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

131132442 is a wasteful number, since it uses less digits than its factorization.

131132442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122213.

The product of its digits is 576, while the sum is 21.

The square root of 131132442 is about 11451.3074362712. The cubic root of 131132442 is about 508.0464054369.

Adding to 131132442 its reverse (244231131), we get a palindrome (375363573).

The spelling of 131132442 in words is "one hundred thirty-one million, one hundred thirty-two thousand, four hundred forty-two".