318071401 has 2 divisors, whose sum is σ = 318071402. Its totient is φ = 318071400.

The previous prime is 318071359. The next prime is 318071407. The reversal of 318071401 is 104170813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289170025 + 28901376 = 17005^2 + 5376^2 .

It is a cyclic number.

It is not a de Polignac number, because 318071401 - 2⁹ = 318070889 is a prime.

It is a super-2 number, since 2×318071401² = 202338832268205602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318071407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159035700 + 159035701.

It is an arithmetic number, because the mean of its divisors is an integer number (159035701).

Almost surely, 2^318071401 is an apocalyptic number.

It is an amenable number.

318071401 is a deficient number, since it is larger than the sum of its proper divisors (1).

318071401 is an equidigital number, since it uses as much as digits as its factorization.

318071401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 318071401 is about 17834.5563723912. The cubic root of 318071401 is about 682.6135014086.

The spelling of 318071401 in words is "three hundred eighteen million, seventy-one thousand, four hundred one".