312119539 has 2 divisors, whose sum is σ = 312119540. Its totient is φ = 312119538.

The previous prime is 312119513. The next prime is 312119543. The reversal of 312119539 is 935911213.

It is a strong prime.

It is an emirp because it is prime and its reverse (935911213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312119539 is a prime.

It is not a weakly prime, because it can be changed into another prime (312119569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156059769 + 156059770.

It is an arithmetic number, because the mean of its divisors is an integer number (156059770).

Almost surely, 2^312119539 is an apocalyptic number.

312119539 is a deficient number, since it is larger than the sum of its proper divisors (1).

312119539 is an equidigital number, since it uses as much as digits as its factorization.

312119539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 34.

The square root of 312119539 is about 17666.9051902137. The cubic root of 312119539 is about 678.3288976335.

The spelling of 312119539 in words is "three hundred twelve million, one hundred nineteen thousand, five hundred thirty-nine".