312762469 has 2 divisors, whose sum is σ = 312762470. Its totient is φ = 312762468.

The previous prime is 312762451. The next prime is 312762511. The reversal of 312762469 is 964267213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307300900 + 5461569 = 17530^2 + 2337^2 .

It is a cyclic number.

It is not a de Polignac number, because 312762469 - 2⁷ = 312762341 is a prime.

It is a super-2 number, since 2×312762469² = 195640724029951922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312762449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156381234 + 156381235.

It is an arithmetic number, because the mean of its divisors is an integer number (156381235).

Almost surely, 2^312762469 is an apocalyptic number.

It is an amenable number.

312762469 is a deficient number, since it is larger than the sum of its proper divisors (1).

312762469 is an equidigital number, since it uses as much as digits as its factorization.

312762469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 312762469 is about 17685.0917159058. The cubic root of 312762469 is about 678.7943377775.

The spelling of 312762469 in words is "three hundred twelve million, seven hundred sixty-two thousand, four hundred sixty-nine".