318076405249 has 2 divisors, whose sum is σ = 318076405250. Its totient is φ = 318076405248.

The previous prime is 318076405147. The next prime is 318076405271. The reversal of 318076405249 is 942504670813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317892992400 + 183412849 = 563820^2 + 13543^2 .

It is a cyclic number.

It is not a de Polignac number, because 318076405249 - 2¹⁷ = 318076274177 is a prime.

It is a super-2 number, since 2×318076405249² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318076405279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159038202624 + 159038202625.

It is an arithmetic number, because the mean of its divisors is an integer number (159038202625).

It is a 1-persistent number, because it is pandigital, but 2⋅318076405249 = 636152810498 is not.

Almost surely, 2^318076405249 is an apocalyptic number.

It is an amenable number.

318076405249 is a deficient number, since it is larger than the sum of its proper divisors (1).

318076405249 is an equidigital number, since it uses as much as digits as its factorization.

318076405249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 318076405249 in words is "three hundred eighteen billion, seventy-six million, four hundred five thousand, two hundred forty-nine".