3128565156 has 48 divisors (see below), whose sum is σ = 8018304000. Its totient is φ = 945011232.

The previous prime is 3128565151. The next prime is 3128565163. The reversal of 3128565156 is 6515658213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3128565151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293056 + ... + 303543.

It is an arithmetic number, because the mean of its divisors is an integer number (167048000).

Almost surely, 2^3128565156 is an apocalyptic number.

It is an amenable number.

3128565156 is an abundant number, since it is smaller than the sum of its proper divisors (4889738844).

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

3128565156 is a wasteful number, since it uses less digits than its factorization.

3128565156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596648 (or 596646 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 3128565156 is about 55933.5780725675. The cubic root of 3128565156 is about 1462.5646353785.

The spelling of 3128565156 in words is "three billion, one hundred twenty-eight million, five hundred sixty-five thousand, one hundred fifty-six".