3091128156 has 72 divisors (see below), whose sum is σ = 8579778480. Its totient is φ = 969760512.

The previous prime is 3091128113. The next prime is 3091128193. The reversal of 3091128156 is 6518211903.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3091128156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77011 + ... + 110058.

It is an arithmetic number, because the mean of its divisors is an integer number (119163590).

Almost surely, 2^3091128156 is an apocalyptic number.

3091128156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3091128156 is an abundant number, since it is smaller than the sum of its proper divisors (5488650324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3091128156 is a wasteful number, since it uses less digits than its factorization.

3091128156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187105 (or 187091 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 3091128156 is about 55597.9150328499. The cubic root of 3091128156 is about 1456.7074354470.

The spelling of 3091128156 in words is "three billion, ninety-one million, one hundred twenty-eight thousand, one hundred fifty-six".