131442232 has 32 divisors (see below), whose sum is σ = 269377920. Its totient is φ = 59857920.

The previous prime is 131442197. The next prime is 131442253. The reversal of 131442232 is 232244131.

It is a super-3 number, since 3×131442232³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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, 11373 + ... + 19804.

It is an arithmetic number, because the mean of its divisors is an integer number (8418060).

Almost surely, 2^131442232 is an apocalyptic number.

It is an amenable number.

131442232 is an abundant number, since it is smaller than the sum of its proper divisors (137935688).

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

131442232 is a wasteful number, since it uses less digits than its factorization.

131442232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31231 (or 31227 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 131442232 is about 11464.8258599946. The cubic root of 131442232 is about 508.4461639236.

Adding to 131442232 its reverse (232244131), we get a palindrome (363686363).

It can be divided in two parts, 13144 and 2232, that added together give a square (15376 = 124²).

The spelling of 131442232 in words is "one hundred thirty-one million, four hundred forty-two thousand, two hundred thirty-two".