131233232 has 30 divisors (see below), whose sum is σ = 275333382. Its totient is φ = 60567936.

The previous prime is 131233229. The next prime is 131233237. The reversal of 131233232 is 232332131.

It can be written as a sum of positive squares in 3 ways, for example, as 6330256 + 124902976 = 2516^2 + 11176^2 .

It is a super-2 number, since 2×131233232² = 34444322362331648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131233237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21563 + ... + 26970.

Almost surely, 2^131233232 is an apocalyptic number.

It is an amenable number.

131233232 is an abundant number, since it is smaller than the sum of its proper divisors (144100150).

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

131233232 is a wasteful number, since it uses less digits than its factorization.

131233232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48567 (or 48548 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 131233232 is about 11455.7073984979. The cubic root of 131233232 is about 508.1765356646.

Adding to 131233232 its reverse (232332131), we get a palindrome (363565363).

It can be divided in two parts, 13 and 1233232, that multiplied together give a square (16032016 = 4004²).

The spelling of 131233232 in words is "one hundred thirty-one million, two hundred thirty-three thousand, two hundred thirty-two".