131031044 has 6 divisors (see below), whose sum is σ = 229304334. Its totient is φ = 65515520.

The previous prime is 131031031. The next prime is 131031067. The reversal of 131031044 is 440130131.

It can be written as a sum of positive squares in only one way, i.e., 104816644 + 26214400 = 10238^2 + 5120^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16378877 + ... + 16378884.

It is an arithmetic number, because the mean of its divisors is an integer number (38217389).

Almost surely, 2^131031044 is an apocalyptic number.

It is an amenable number.

131031044 is a deficient number, since it is larger than the sum of its proper divisors (98273290).

131031044 is a wasteful number, since it uses less digits than its factorization.

131031044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32757765 (or 32757763 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131031044 is about 11446.8792253609. The cubic root of 131031044 is about 507.9154229171.

Adding to 131031044 its reverse (440130131), we get a palindrome (571161175).

The spelling of 131031044 in words is "one hundred thirty-one million, thirty-one thousand, forty-four".