314257081 has 2 divisors, whose sum is σ = 314257082. Its totient is φ = 314257080.

The previous prime is 314257061. The next prime is 314257117. The reversal of 314257081 is 180752413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182007081 + 132250000 = 13491^2 + 11500^2 .

It is a cyclic number.

It is not a de Polignac number, because 314257081 - 2⁵ = 314257049 is a prime.

It is a super-2 number, since 2×314257081² = 197515025917281122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (314257061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157128540 + 157128541.

It is an arithmetic number, because the mean of its divisors is an integer number (157128541).

Almost surely, 2^314257081 is an apocalyptic number.

It is an amenable number.

314257081 is a deficient number, since it is larger than the sum of its proper divisors (1).

314257081 is an equidigital number, since it uses as much as digits as its factorization.

314257081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 314257081 is about 17727.2976225932. The cubic root of 314257081 is about 679.8738815990.

The spelling of 314257081 in words is "three hundred fourteen million, two hundred fifty-seven thousand, eighty-one".