31064317 has 2 divisors, whose sum is σ = 31064318. Its totient is φ = 31064316.

The previous prime is 31064309. The next prime is 31064333. The reversal of 31064317 is 71346013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23145721 + 7918596 = 4811^2 + 2814^2 .

It is an emirp because it is prime and its reverse (71346013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31064317 - 2³ = 31064309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31064291 and 31064300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31064357) by changing a digit.

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 as a sum of consecutive naturals, namely, 15532158 + 15532159.

It is an arithmetic number, because the mean of its divisors is an integer number (15532159).

Almost surely, 2^31064317 is an apocalyptic number.

It is an amenable number.

31064317 is a deficient number, since it is larger than the sum of its proper divisors (1).

31064317 is an equidigital number, since it uses as much as digits as its factorization.

31064317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 31064317 is about 5573.5372071962. The cubic root of 31064317 is about 314.3551669708.

The spelling of 31064317 in words is "thirty-one million, sixty-four thousand, three hundred seventeen".