3318157 has 2 divisors, whose sum is σ = 3318158. Its totient is φ = 3318156.

The previous prime is 3318149. The next prime is 3318167. The reversal of 3318157 is 7518133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3316041 + 2116 = 1821^2 + 46^2 .

It is a cyclic number.

It is not a de Polignac number, because 3318157 - 2³ = 3318149 is a prime.

It is a super-2 number, since 2×3318157² = 22020331753298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3318137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1659078 + 1659079.

It is an arithmetic number, because the mean of its divisors is an integer number (1659079).

Almost surely, 2^3318157 is an apocalyptic number.

It is an amenable number.

3318157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3318157 is an equidigital number, since it uses as much as digits as its factorization.

3318157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 3318157 is about 1821.5809067950. The cubic root of 3318157 is about 149.1531089842.

The spelling of 3318157 in words is "three million, three hundred eighteen thousand, one hundred fifty-seven".