131032444 has 6 divisors (see below), whose sum is σ = 229306784. Its totient is φ = 65516220.

The previous prime is 131032441. The next prime is 131032457. The reversal of 131032444 is 444230131.

It is a super-2 number, since 2×131032444² = 34339002761226272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16379052 + ... + 16379059.

Almost surely, 2^131032444 is an apocalyptic number.

It is an amenable number.

131032444 is a deficient number, since it is larger than the sum of its proper divisors (98274340).

131032444 is a wasteful number, since it uses less digits than its factorization.

131032444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32758115 (or 32758113 counting only the distinct ones).

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

The square root of 131032444 is about 11446.9403772362. The cubic root of 131032444 is about 507.9172318499.

Adding to 131032444 its reverse (444230131), we get a palindrome (575262575).

The spelling of 131032444 in words is "one hundred thirty-one million, thirty-two thousand, four hundred forty-four".