312931441 has 2 divisors, whose sum is σ = 312931442. Its totient is φ = 312931440.

The previous prime is 312931433. The next prime is 312931469. The reversal of 312931441 is 144139213.

It is an a-pointer prime, because the next prime (312931469) can be obtained adding 312931441 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312547041 + 384400 = 17679^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 312931441 - 2³ = 312931433 is a prime.

It is not a weakly prime, because it can be changed into another prime (312931841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156465720 + 156465721.

It is an arithmetic number, because the mean of its divisors is an integer number (156465721).

Almost surely, 2^312931441 is an apocalyptic number.

It is an amenable number.

312931441 is a deficient number, since it is larger than the sum of its proper divisors (1).

312931441 is an equidigital number, since it uses as much as digits as its factorization.

312931441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 312931441 is about 17689.8683149423. The cubic root of 312931441 is about 678.9165568192.

The spelling of 312931441 in words is "three hundred twelve million, nine hundred thirty-one thousand, four hundred forty-one".