31614012 has 18 divisors (see below), whose sum is σ = 79913288. Its totient is φ = 10537992.

The previous prime is 31614007. The next prime is 31614019. The reversal of 31614012 is 21041613.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×31614012² = 1998891509472288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31614019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 439048 + ... + 439119.

Almost surely, 2^31614012 is an apocalyptic number.

It is an amenable number.

31614012 is an abundant number, since it is smaller than the sum of its proper divisors (48299276).

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

31614012 is a wasteful number, since it uses less digits than its factorization.

31614012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878177 (or 878172 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 31614012 is about 5622.6339023628. The cubic root of 31614012 is about 316.1985479784.

Adding to 31614012 its reverse (21041613), we get a palindrome (52655625).

The spelling of 31614012 in words is "thirty-one million, six hundred fourteen thousand, twelve".