318041887 has 2 divisors, whose sum is σ = 318041888. Its totient is φ = 318041886.

The previous prime is 318041863. The next prime is 318041897. The reversal of 318041887 is 788140813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318041887 - 2²⁷ = 183824159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318041827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159020943 + 159020944.

It is an arithmetic number, because the mean of its divisors is an integer number (159020944).

Almost surely, 2^318041887 is an apocalyptic number.

318041887 is a deficient number, since it is larger than the sum of its proper divisors (1).

318041887 is an equidigital number, since it uses as much as digits as its factorization.

318041887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 318041887 is about 17833.7289146157. The cubic root of 318041887 is about 682.5923874092.

The spelling of 318041887 in words is "three hundred eighteen million, forty-one thousand, eight hundred eighty-seven".