318026897 has 2 divisors, whose sum is σ = 318026898. Its totient is φ = 318026896.

The previous prime is 318026869. The next prime is 318026927. The reversal of 318026897 is 798620813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292786321 + 25240576 = 17111^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 318026897 - 2⁶ = 318026833 is a prime.

It is a super-2 number, since 2×318026897² = 202282214430897218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (318026197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159013448 + 159013449.

It is an arithmetic number, because the mean of its divisors is an integer number (159013449).

Almost surely, 2^318026897 is an apocalyptic number.

It is an amenable number.

318026897 is a deficient number, since it is larger than the sum of its proper divisors (1).

318026897 is an equidigital number, since it uses as much as digits as its factorization.

318026897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 318026897 is about 17833.3086386122. The cubic root of 318026897 is about 682.5816632237.

The spelling of 318026897 in words is "three hundred eighteen million, twenty-six thousand, eight hundred ninety-seven".