312351497 has 2 divisors, whose sum is σ = 312351498. Its totient is φ = 312351496.

The previous prime is 312351491. The next prime is 312351539. The reversal of 312351497 is 794153213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307616521 + 4734976 = 17539^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 312351497 - 2⁶ = 312351433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312351491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156175748 + 156175749.

It is an arithmetic number, because the mean of its divisors is an integer number (156175749).

Almost surely, 2^312351497 is an apocalyptic number.

It is an amenable number.

312351497 is a deficient number, since it is larger than the sum of its proper divisors (1).

312351497 is an equidigital number, since it uses as much as digits as its factorization.

312351497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 312351497 is about 17673.4687314064. The cubic root of 312351497 is about 678.4968940078.

The spelling of 312351497 in words is "three hundred twelve million, three hundred fifty-one thousand, four hundred ninety-seven".