31402612 has 6 divisors (see below), whose sum is σ = 54954578. Its totient is φ = 15701304.

The previous prime is 31402601. The next prime is 31402633. The reversal of 31402612 is 21620413.

It can be written as a sum of positive squares in only one way, i.e., 27920656 + 3481956 = 5284^2 + 1866^2 .

It is a super-2 number, since 2×31402612² = 1972248080845088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31402612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925323 + ... + 3925330.

Almost surely, 2^31402612 is an apocalyptic number.

It is an amenable number.

31402612 is a deficient number, since it is larger than the sum of its proper divisors (23551966).

31402612 is a wasteful number, since it uses less digits than its factorization.

31402612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850657 (or 7850655 counting only the distinct ones).

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

The square root of 31402612 is about 5603.8033512963. The cubic root of 31402612 is about 315.4921742445.

The spelling of 31402612 in words is "thirty-one million, four hundred two thousand, six hundred twelve".