3120818157 has 12 divisors (see below), whose sum is σ = 4584253440. Its totient is φ = 2045281608.

The previous prime is 3120818149. The next prime is 3120818167. The reversal of 3120818157 is 7518180213.

It is not a de Polignac number, because 3120818157 - 2³ = 3120818149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120818137) 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 in 11 ways as a sum of consecutive naturals, for example, 2938093 + ... + 2939154.

It is an arithmetic number, because the mean of its divisors is an integer number (382021120).

Almost surely, 2^3120818157 is an apocalyptic number.

It is an amenable number.

3120818157 is a deficient number, since it is larger than the sum of its proper divisors (1463435283).

3120818157 is a wasteful number, since it uses less digits than its factorization.

3120818157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877312 (or 5877309 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 3120818157 is about 55864.2833749794. The cubic root of 3120818157 is about 1461.3564295580.

The spelling of 3120818157 in words is "three billion, one hundred twenty million, eight hundred eighteen thousand, one hundred fifty-seven".