312492017 has 2 divisors, whose sum is σ = 312492018. Its totient is φ = 312492016.

The previous prime is 312492013. The next prime is 312492029. The reversal of 312492017 is 710294213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257153296 + 55338721 = 16036^2 + 7439^2 .

It is an emirp because it is prime and its reverse (710294213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312492017 - 2² = 312492013 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312492013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156246008 + 156246009.

It is an arithmetic number, because the mean of its divisors is an integer number (156246009).

Almost surely, 2^312492017 is an apocalyptic number.

It is an amenable number.

312492017 is a deficient number, since it is larger than the sum of its proper divisors (1).

312492017 is an equidigital number, since it uses as much as digits as its factorization.

312492017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 312492017 is about 17677.4437348843. The cubic root of 312492017 is about 678.5986256473.

The spelling of 312492017 in words is "three hundred twelve million, four hundred ninety-two thousand, seventeen".