131432244 has 12 divisors (see below), whose sum is σ = 306675264. Its totient is φ = 43810744.

The previous prime is 131432239. The next prime is 131432261. The reversal of 131432244 is 442234131.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5476332 + ... + 5476355.

It is an arithmetic number, because the mean of its divisors is an integer number (25556272).

Almost surely, 2^131432244 is an apocalyptic number.

It is an amenable number.

131432244 is an abundant number, since it is smaller than the sum of its proper divisors (175243020).

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

131432244 is a wasteful number, since it uses less digits than its factorization.

131432244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952694 (or 10952692 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 131432244 is about 11464.3902585353. The cubic root of 131432244 is about 508.4332850367.

Adding to 131432244 its reverse (442234131), we get a palindrome (573666375).

The spelling of 131432244 in words is "one hundred thirty-one million, four hundred thirty-two thousand, two hundred forty-four".