313895489 has 2 divisors, whose sum is σ = 313895490. Its totient is φ = 313895488.

The previous prime is 313895471. The next prime is 313895509. The reversal of 313895489 is 984598313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303038464 + 10857025 = 17408^2 + 3295^2 .

It is a cyclic number.

It is not a de Polignac number, because 313895489 - 2¹² = 313891393 is a prime.

It is not a weakly prime, because it can be changed into another prime (313895419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156947744 + 156947745.

It is an arithmetic number, because the mean of its divisors is an integer number (156947745).

Almost surely, 2^313895489 is an apocalyptic number.

It is an amenable number.

313895489 is a deficient number, since it is larger than the sum of its proper divisors (1).

313895489 is an equidigital number, since it uses as much as digits as its factorization.

313895489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 50.

The square root of 313895489 is about 17717.0959527796. The cubic root of 313895489 is about 679.6130215998.

The spelling of 313895489 in words is "three hundred thirteen million, eight hundred ninety-five thousand, four hundred eighty-nine".