318702089 has 2 divisors, whose sum is σ = 318702090. Its totient is φ = 318702088.

The previous prime is 318702019. The next prime is 318702101. The reversal of 318702089 is 980207813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318444025 + 258064 = 17845^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 318702089 - 2²⁸ = 50266633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (318702019) 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, 159351044 + 159351045.

It is an arithmetic number, because the mean of its divisors is an integer number (159351045).

Almost surely, 2^318702089 is an apocalyptic number.

It is an amenable number.

318702089 is a deficient number, since it is larger than the sum of its proper divisors (1).

318702089 is an equidigital number, since it uses as much as digits as its factorization.

318702089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 318702089 is about 17852.2292445509. The cubic root of 318702089 is about 683.0643770149.

The spelling of 318702089 in words is "three hundred eighteen million, seven hundred two thousand, eighty-nine".