313630049 has 2 divisors, whose sum is σ = 313630050. Its totient is φ = 313630048.

The previous prime is 313630043. The next prime is 313630123. The reversal of 313630049 is 940036313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182115025 + 131515024 = 13495^2 + 11468^2 .

It is an emirp because it is prime and its reverse (940036313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313630049 - 2⁸ = 313629793 is a prime.

It is not a weakly prime, because it can be changed into another prime (313630043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156815024 + 156815025.

It is an arithmetic number, because the mean of its divisors is an integer number (156815025).

Almost surely, 2^313630049 is an apocalyptic number.

It is an amenable number.

313630049 is a deficient number, since it is larger than the sum of its proper divisors (1).

313630049 is an equidigital number, since it uses as much as digits as its factorization.

313630049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 313630049 is about 17709.6032987755. The cubic root of 313630049 is about 679.4214001203.

The spelling of 313630049 in words is "three hundred thirteen million, six hundred thirty thousand, forty-nine".