31013953 has 2 divisors, whose sum is σ = 31013954. Its totient is φ = 31013952.

The previous prime is 31013929. The next prime is 31013971. The reversal of 31013953 is 35931013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26553409 + 4460544 = 5153^2 + 2112^2 .

It is a cyclic number.

It is not a de Polignac number, because 31013953 - 2¹³ = 31005761 is a prime.

It is not a weakly prime, because it can be changed into another prime (31013993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506976 + 15506977.

It is an arithmetic number, because the mean of its divisors is an integer number (15506977).

Almost surely, 2^31013953 is an apocalyptic number.

It is an amenable number.

31013953 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013953 is an equidigital number, since it uses as much as digits as its factorization.

31013953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 25.

The square root of 31013953 is about 5569.0172382567. The cubic root of 31013953 is about 314.1851890130.

Adding to 31013953 its reverse (35931013), we get a palindrome (66944966).

The spelling of 31013953 in words is "thirty-one million, thirteen thousand, nine hundred fifty-three".