131242232 has 64 divisors (see below), whose sum is σ = 284981760. Its totient is φ = 56073600.

The previous prime is 131242229. The next prime is 131242249. The reversal of 131242232 is 232242131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122933 + ... + 123995.

It is an arithmetic number, because the mean of its divisors is an integer number (4452840).

Almost surely, 2^131242232 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 131242232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142490880).

131242232 is an abundant number, since it is smaller than the sum of its proper divisors (153739528).

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

131242232 is a wasteful number, since it uses less digits than its factorization.

131242232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1160 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 131242232 is about 11456.1002090589. The cubic root of 131242232 is about 508.1881523469.

Adding to 131242232 its reverse (232242131), we get a palindrome (363484363).

The spelling of 131242232 in words is "one hundred thirty-one million, two hundred forty-two thousand, two hundred thirty-two".