312161216459 has 2 divisors, whose sum is σ = 312161216460. Its totient is φ = 312161216458.

The previous prime is 312161216453. The next prime is 312161216467. The reversal of 312161216459 is 954612161213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312161216459 - 2⁴ = 312161216443 is a prime.

It is a super-2 number, since 2×312161216459² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312161216453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156080608229 + 156080608230.

It is an arithmetic number, because the mean of its divisors is an integer number (156080608230).

Almost surely, 2^312161216459 is an apocalyptic number.

312161216459 is a deficient number, since it is larger than the sum of its proper divisors (1).

312161216459 is an equidigital number, since it uses as much as digits as its factorization.

312161216459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The spelling of 312161216459 in words is "three hundred twelve billion, one hundred sixty-one million, two hundred sixteen thousand, four hundred fifty-nine".