31086214 has 16 divisors (see below), whose sum is σ = 47589120. Its totient is φ = 15226120.

The previous prime is 31086199. The next prime is 31086227. The reversal of 31086214 is 41268013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24807 + ... + 26029.

It is an arithmetic number, because the mean of its divisors is an integer number (2974320).

Almost surely, 2^31086214 is an apocalyptic number.

31086214 is a deficient number, since it is larger than the sum of its proper divisors (16502906).

31086214 is a wasteful number, since it uses less digits than its factorization.

31086214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 31086214 is about 5575.5012330731. The cubic root of 31086214 is about 314.4290118087.

The spelling of 31086214 in words is "thirty-one million, eighty-six thousand, two hundred fourteen".