314986681 has 2 divisors, whose sum is σ = 314986682. Its totient is φ = 314986680.

The previous prime is 314986657. The next prime is 314986697. The reversal of 314986681 is 186689413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271953081 + 43033600 = 16491^2 + 6560^2 .

It is a cyclic number.

It is not a de Polignac number, because 314986681 - 2⁹ = 314986169 is a prime.

It is a super-2 number, since 2×314986681² = 198433218414791522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (314983681) 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, 157493340 + 157493341.

It is an arithmetic number, because the mean of its divisors is an integer number (157493341).

Almost surely, 2^314986681 is an apocalyptic number.

It is an amenable number.

314986681 is a deficient number, since it is larger than the sum of its proper divisors (1).

314986681 is an equidigital number, since it uses as much as digits as its factorization.

314986681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 314986681 is about 17747.8641250152. The cubic root of 314986681 is about 680.3996216503.

The spelling of 314986681 in words is "three hundred fourteen million, nine hundred eighty-six thousand, six hundred eighty-one".