131342232 has 32 divisors (see below), whose sum is σ = 375264000. Its totient is φ = 37526304.

The previous prime is 131342227. The next prime is 131342243. The reversal of 131342232 is 232243131.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 131342199 and 131342208.

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, 390732 + ... + 391067.

It is an arithmetic number, because the mean of its divisors is an integer number (11727000).

Almost surely, 2^131342232 is an apocalyptic number.

131342232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131342232 is an abundant number, since it is smaller than the sum of its proper divisors (243921768).

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

131342232 is a wasteful number, since it uses less digits than its factorization.

131342232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781815 (or 781811 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 131342232 is about 11460.4638649576. The cubic root of 131342232 is about 508.3171908756.

Adding to 131342232 its reverse (232243131), we get a palindrome (363585363).

The spelling of 131342232 in words is "one hundred thirty-one million, three hundred forty-two thousand, two hundred thirty-two".