31061994 has 16 divisors (see below), whose sum is σ = 62186880. Its totient is φ = 10343520.

The previous prime is 31061963. The next prime is 31062001. The reversal of 31061994 is 49916013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5967 + ... + 9885.

It is an arithmetic number, because the mean of its divisors is an integer number (3886680).

Almost surely, 2^31061994 is an apocalyptic number.

31061994 is an abundant number, since it is smaller than the sum of its proper divisors (31124886).

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

31061994 is a wasteful number, since it uses less digits than its factorization.

31061994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 31061994 is about 5573.3288078132. The cubic root of 31061994 is about 314.3473309140.

The spelling of 31061994 in words is "thirty-one million, sixty-one thousand, nine hundred ninety-four".