312211079 has 2 divisors, whose sum is σ = 312211080. Its totient is φ = 312211078.

The previous prime is 312211061. The next prime is 312211139. The reversal of 312211079 is 970112213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312211079 - 2⁸ = 312210823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156105539 + 156105540.

It is an arithmetic number, because the mean of its divisors is an integer number (156105540).

Almost surely, 2^312211079 is an apocalyptic number.

312211079 is a deficient number, since it is larger than the sum of its proper divisors (1).

312211079 is an equidigital number, since it uses as much as digits as its factorization.

312211079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 312211079 is about 17669.4957200255. The cubic root of 312211079 is about 678.3952057303.

The spelling of 312211079 in words is "three hundred twelve million, two hundred eleven thousand, seventy-nine".