313168589 has 2 divisors, whose sum is σ = 313168590. Its totient is φ = 313168588.

The previous prime is 313168547. The next prime is 313168591. The reversal of 313168589 is 985861313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311522500 + 1646089 = 17650^2 + 1283^2 .

It is an emirp because it is prime and its reverse (985861313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313168589 - 2¹² = 313164493 is a prime.

Together with 313168591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318168589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156584294 + 156584295.

It is an arithmetic number, because the mean of its divisors is an integer number (156584295).

Almost surely, 2^313168589 is an apocalyptic number.

It is an amenable number.

313168589 is a deficient number, since it is larger than the sum of its proper divisors (1).

313168589 is an equidigital number, since it uses as much as digits as its factorization.

313168589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 313168589 is about 17696.5699783885. The cubic root of 313168589 is about 679.0880140232.

The spelling of 313168589 in words is "three hundred thirteen million, one hundred sixty-eight thousand, five hundred eighty-nine".