31214713 has 2 divisors, whose sum is σ = 31214714. Its totient is φ = 31214712.

The previous prime is 31214699. The next prime is 31214741. The reversal of 31214713 is 31741213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31214569 + 144 = 5587^2 + 12^2 .

It is a cyclic number.

It is not a de Polignac number, because 31214713 - 2⁹ = 31214201 is a prime.

It is not a weakly prime, because it can be changed into another prime (31214753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15607356 + 15607357.

It is an arithmetic number, because the mean of its divisors is an integer number (15607357).

Almost surely, 2^31214713 is an apocalyptic number.

It is an amenable number.

31214713 is a deficient number, since it is larger than the sum of its proper divisors (1).

31214713 is an equidigital number, since it uses as much as digits as its factorization.

31214713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 22.

The square root of 31214713 is about 5587.0128870444. The cubic root of 31214713 is about 314.8616609306.

Adding to 31214713 its reverse (31741213), we get a palindrome (62955926).

The spelling of 31214713 in words is "thirty-one million, two hundred fourteen thousand, seven hundred thirteen".