31613214 has 16 divisors (see below), whose sum is σ = 64769040. Its totient is φ = 10280640.

The previous prime is 31613191. The next prime is 31613227. The reversal of 31613214 is 41231613.

It is a congruent number.

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, 64009 + ... + 64500.

It is an arithmetic number, because the mean of its divisors is an integer number (4048065).

Almost surely, 2^31613214 is an apocalyptic number.

31613214 is an abundant number, since it is smaller than the sum of its proper divisors (33155826).

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

31613214 is a wasteful number, since it uses less digits than its factorization.

31613214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128555.

The product of its digits is 432, while the sum is 21.

The square root of 31613214 is about 5622.5629387318. The cubic root of 31613214 is about 316.1958874644.

Adding to 31613214 its reverse (41231613), we get a palindrome (72844827).

It can be divided in two parts, 316 and 13214, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 31613214 in words is "thirty-one million, six hundred thirteen thousand, two hundred fourteen".