31314859 has 2 divisors, whose sum is σ = 31314860. Its totient is φ = 31314858.

The previous prime is 31314853. The next prime is 31314887. The reversal of 31314859 is 95841313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31314859 - 2³ = 31314851 is a prime.

It is not a weakly prime, because it can be changed into another prime (31314851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15657429 + 15657430.

It is an arithmetic number, because the mean of its divisors is an integer number (15657430).

Almost surely, 2^31314859 is an apocalyptic number.

31314859 is a deficient number, since it is larger than the sum of its proper divisors (1).

31314859 is an equidigital number, since it uses as much as digits as its factorization.

31314859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 31314859 is about 5595.9681021250. The cubic root of 31314859 is about 315.1980244740.

The spelling of 31314859 in words is "thirty-one million, three hundred fourteen thousand, eight hundred fifty-nine".