131343132 has 12 divisors (see below), whose sum is σ = 306467336. Its totient is φ = 43781040.

The previous prime is 131343119. The next prime is 131343137. The reversal of 131343132 is 231343131.

It is a tau number, because it is divible by the number of its divisors (12).

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 = 131343099 and 131343108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5472619 + ... + 5472642.

Almost surely, 2^131343132 is an apocalyptic number.

131343132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131343132 is an abundant number, since it is smaller than the sum of its proper divisors (175124204).

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

131343132 is a wasteful number, since it uses less digits than its factorization.

131343132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10945268 (or 10945266 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 131343132 is about 11460.5031303167. The cubic root of 131343132 is about 508.3183519249.

Adding to 131343132 its reverse (231343131), we get a palindrome (362686263).

Subtracting 131343132 from its reverse (231343131), we obtain a palindrome (99999999).

The spelling of 131343132 in words is "one hundred thirty-one million, three hundred forty-three thousand, one hundred thirty-two".