313325549 has 2 divisors, whose sum is σ = 313325550. Its totient is φ = 313325548.

The previous prime is 313325539. The next prime is 313325591. The reversal of 313325549 is 945523313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156700324 + 156625225 = 12518^2 + 12515^2 .

It is a cyclic number.

It is not a de Polignac number, because 313325549 - 2⁸ = 313325293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313325539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156662774 + 156662775.

It is an arithmetic number, because the mean of its divisors is an integer number (156662775).

Almost surely, 2^313325549 is an apocalyptic number.

It is an amenable number.

313325549 is a deficient number, since it is larger than the sum of its proper divisors (1).

313325549 is an equidigital number, since it uses as much as digits as its factorization.

313325549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 35.

The square root of 313325549 is about 17701.0041805543. The cubic root of 313325549 is about 679.2014479752.

It can be divided in two parts, 3133 and 25549, that added together give a palindrome (28682).

The spelling of 313325549 in words is "three hundred thirteen million, three hundred twenty-five thousand, five hundred forty-nine".