3081081157 has 16 divisors (see below), whose sum is σ = 3877258752. Its totient is φ = 2378398320.

The previous prime is 3081081149. The next prime is 3081081163. The reversal of 3081081157 is 7511801803.

3081081157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3081081157 - 2³ = 3081081149 is a prime.

It is a super-2 number, since 2×3081081157² = 18986122192040917298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081081137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178743 + ... + 195220.

It is an arithmetic number, because the mean of its divisors is an integer number (242328672).

Almost surely, 2^3081081157 is an apocalyptic number.

It is an amenable number.

3081081157 is a deficient number, since it is larger than the sum of its proper divisors (796177595).

3081081157 is a wasteful number, since it uses less digits than its factorization.

3081081157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374088.

The product of its (nonzero) digits is 6720, while the sum is 34.

The square root of 3081081157 is about 55507.4873958460. The cubic root of 3081081157 is about 1455.1274919676.

The spelling of 3081081157 in words is "three billion, eighty-one million, eighty-one thousand, one hundred fifty-seven".