312492097 has 2 divisors, whose sum is σ = 312492098. Its totient is φ = 312492096.

The previous prime is 312492073. The next prime is 312492101. The reversal of 312492097 is 790294213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220255281 + 92236816 = 14841^2 + 9604^2 .

It is a cyclic number.

It is not a de Polignac number, because 312492097 - 2⁷ = 312491969 is a prime.

It is not a weakly prime, because it can be changed into another prime (312492017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156246048 + 156246049.

It is an arithmetic number, because the mean of its divisors is an integer number (156246049).

Almost surely, 2^312492097 is an apocalyptic number.

It is an amenable number.

312492097 is a deficient number, since it is larger than the sum of its proper divisors (1).

312492097 is an equidigital number, since it uses as much as digits as its factorization.

312492097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 312492097 is about 17677.4459976548. The cubic root of 312492097 is about 678.5986835559.

The spelling of 312492097 in words is "three hundred twelve million, four hundred ninety-two thousand, ninety-seven".