312367249 has 2 divisors, whose sum is σ = 312367250. Its totient is φ = 312367248.

The previous prime is 312367189. The next prime is 312367291. The reversal of 312367249 is 942763213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303003649 + 9363600 = 17407^2 + 3060^2 .

It is a cyclic number.

It is not a de Polignac number, because 312367249 - 2⁹ = 312366737 is a prime.

It is not a weakly prime, because it can be changed into another prime (312362249) 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, 156183624 + 156183625.

It is an arithmetic number, because the mean of its divisors is an integer number (156183625).

Almost surely, 2^312367249 is an apocalyptic number.

It is an amenable number.

312367249 is a deficient number, since it is larger than the sum of its proper divisors (1).

312367249 is an equidigital number, since it uses as much as digits as its factorization.

312367249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 312367249 is about 17673.9143655275. The cubic root of 312367249 is about 678.5082994314.

The spelling of 312367249 in words is "three hundred twelve million, three hundred sixty-seven thousand, two hundred forty-nine".