311418049 has 2 divisors, whose sum is σ = 311418050. Its totient is φ = 311418048.

The previous prime is 311418017. The next prime is 311418071. The reversal of 311418049 is 940814113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309513649 + 1904400 = 17593^2 + 1380^2 .

It is a cyclic number.

It is not a de Polignac number, because 311418049 - 2⁵ = 311418017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311418049.

It is not a weakly prime, because it can be changed into another prime (311410049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155709024 + 155709025.

It is an arithmetic number, because the mean of its divisors is an integer number (155709025).

Almost surely, 2^311418049 is an apocalyptic number.

It is an amenable number.

311418049 is a deficient number, since it is larger than the sum of its proper divisors (1).

311418049 is an equidigital number, since it uses as much as digits as its factorization.

311418049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 311418049 is about 17647.0408000888. The cubic root of 311418049 is about 677.8203340763.

The spelling of 311418049 in words is "three hundred eleven million, four hundred eighteen thousand, forty-nine".