31096961 has 16 divisors (see below), whose sum is σ = 38931840. Its totient is φ = 24218880.

The previous prime is 31096931. The next prime is 31096973. The reversal of 31096961 is 16969013.

It is not a de Polignac number, because 31096961 - 2²² = 26902657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31096921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (2433240).

Almost surely, 2^31096961 is an apocalyptic number.

It is an amenable number.

31096961 is a deficient number, since it is larger than the sum of its proper divisors (7834879).

31096961 is a wasteful number, since it uses less digits than its factorization.

31096961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9064.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 31096961 is about 5576.4649196422. The cubic root of 31096961 is about 314.4652420087.

The spelling of 31096961 in words is "thirty-one million, ninety-six thousand, nine hundred sixty-one".