314312989 has 2 divisors, whose sum is σ = 314312990. Its totient is φ = 314312988.

The previous prime is 314312987. The next prime is 314313031. The reversal of 314312989 is 989213413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229764964 + 84548025 = 15158^2 + 9195^2 .

It is a cyclic number.

It is not a de Polignac number, because 314312989 - 2¹ = 314312987 is a prime.

It is a super-2 number, since 2×314312989² = 197585310108228242, which contains 22 as substring.

Together with 314312987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314312981) 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, 157156494 + 157156495.

It is an arithmetic number, because the mean of its divisors is an integer number (157156495).

Almost surely, 2^314312989 is an apocalyptic number.

It is an amenable number.

314312989 is a deficient number, since it is larger than the sum of its proper divisors (1).

314312989 is an equidigital number, since it uses as much as digits as its factorization.

314312989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 314312989 is about 17728.8744425584. The cubic root of 314312989 is about 679.9141969304.

The spelling of 314312989 in words is "three hundred fourteen million, three hundred twelve thousand, nine hundred eighty-nine".