312302369 has 2 divisors, whose sum is σ = 312302370. Its totient is φ = 312302368.

The previous prime is 312302329. The next prime is 312302387. The reversal of 312302369 is 963203213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220908769 + 91393600 = 14863^2 + 9560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312302369 is a prime.

It is a super-2 number, since 2×312302369² = 195065539366024322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312302329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156151184 + 156151185.

It is an arithmetic number, because the mean of its divisors is an integer number (156151185).

Almost surely, 2^312302369 is an apocalyptic number.

It is an amenable number.

312302369 is a deficient number, since it is larger than the sum of its proper divisors (1).

312302369 is an equidigital number, since it uses as much as digits as its factorization.

312302369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 312302369 is about 17672.0787967913. The cubic root of 312302369 is about 678.4613198299.

The spelling of 312302369 in words is "three hundred twelve million, three hundred two thousand, three hundred sixty-nine".