31004959 has 2 divisors, whose sum is σ = 31004960. Its totient is φ = 31004958.

The previous prime is 31004951. The next prime is 31004969. The reversal of 31004959 is 95940013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31004959 - 2³ = 31004951 is a prime.

It is a super-2 number, since 2×31004959² = 1922614965183362, 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 31004959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31004951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15502479 + 15502480.

It is an arithmetic number, because the mean of its divisors is an integer number (15502480).

Almost surely, 2^31004959 is an apocalyptic number.

31004959 is a deficient number, since it is larger than the sum of its proper divisors (1).

31004959 is an equidigital number, since it uses as much as digits as its factorization.

31004959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 31004959 is about 5568.2096763682. The cubic root of 31004959 is about 314.1548149983.

The spelling of 31004959 in words is "thirty-one million, four thousand, nine hundred fifty-nine".