310213139 has 2 divisors, whose sum is σ = 310213140. Its totient is φ = 310213138.

The previous prime is 310213103. The next prime is 310213147. The reversal of 310213139 is 931312013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 310213139 - 2¹² = 310209043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (310213039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155106569 + 155106570.

It is an arithmetic number, because the mean of its divisors is an integer number (155106570).

Almost surely, 2^310213139 is an apocalyptic number.

310213139 is a deficient number, since it is larger than the sum of its proper divisors (1).

310213139 is an equidigital number, since it uses as much as digits as its factorization.

310213139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 310213139 is about 17612.8685625028. The cubic root of 310213139 is about 676.9450175604.

The spelling of 310213139 in words is "three hundred ten million, two hundred thirteen thousand, one hundred thirty-nine".