318748999 has 2 divisors, whose sum is σ = 318749000. Its totient is φ = 318748998.

The previous prime is 318748979. The next prime is 318749009. The reversal of 318748999 is 999847813.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (999847813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318748999 - 2²⁷ = 184531271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318748909) 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, 159374499 + 159374500.

It is an arithmetic number, because the mean of its divisors is an integer number (159374500).

Almost surely, 2^318748999 is an apocalyptic number.

318748999 is a deficient number, since it is larger than the sum of its proper divisors (1).

318748999 is an equidigital number, since it uses as much as digits as its factorization.

318748999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 58.

The square root of 318748999 is about 17853.5430377278. The cubic root of 318748999 is about 683.0978889570.

The spelling of 318748999 in words is "three hundred eighteen million, seven hundred forty-eight thousand, nine hundred ninety-nine".