312724361 has 2 divisors, whose sum is σ = 312724362. Its totient is φ = 312724360.

The previous prime is 312724351. The next prime is 312724387. The reversal of 312724361 is 163427213.

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., 311734336 + 990025 = 17656^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 312724361 - 2¹⁸ = 312462217 is a prime.

It is not a weakly prime, because it can be changed into another prime (312724331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156362180 + 156362181.

It is an arithmetic number, because the mean of its divisors is an integer number (156362181).

Almost surely, 2^312724361 is an apocalyptic number.

It is an amenable number.

312724361 is a deficient number, since it is larger than the sum of its proper divisors (1).

312724361 is an equidigital number, since it uses as much as digits as its factorization.

312724361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 312724361 is about 17684.0142784380. The cubic root of 312724361 is about 678.7667678185.

The spelling of 312724361 in words is "three hundred twelve million, seven hundred twenty-four thousand, three hundred sixty-one".