318040901 has 2 divisors, whose sum is σ = 318040902. Its totient is φ = 318040900.

The previous prime is 318040897. The next prime is 318040909. The reversal of 318040901 is 109040813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300190276 + 17850625 = 17326^2 + 4225^2 .

It is a cyclic number.

It is not a de Polignac number, because 318040901 - 2² = 318040897 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318040909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159020450 + 159020451.

It is an arithmetic number, because the mean of its divisors is an integer number (159020451).

Almost surely, 2^318040901 is an apocalyptic number.

It is an amenable number.

318040901 is a deficient number, since it is larger than the sum of its proper divisors (1).

318040901 is an equidigital number, since it uses as much as digits as its factorization.

318040901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 318040901 is about 17833.7012703477. The cubic root of 318040901 is about 682.5916820128.

The spelling of 318040901 in words is "three hundred eighteen million, forty thousand, nine hundred one".