31612042 has 32 divisors (see below), whose sum is σ = 59439744. Its totient is φ = 12249600.

The previous prime is 31612013. The next prime is 31612043. The reversal of 31612042 is 24021613.

It is not an unprimeable number, because it can be changed into a prime (31612043) 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, 35442 + ... + 36322.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^31612042 is an apocalyptic number.

31612042 is a deficient number, since it is larger than the sum of its proper divisors (27827702).

31612042 is a wasteful number, since it uses less digits than its factorization.

31612042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 31612042 is about 5622.4587148329. The cubic root of 31612042 is about 316.1919799616.

Adding to 31612042 its reverse (24021613), we get a palindrome (55633655).

The spelling of 31612042 in words is "thirty-one million, six hundred twelve thousand, forty-two".