3128851025 has 12 divisors (see below), whose sum is σ = 3952980252. Its totient is φ = 2455851840.

The previous prime is 3128851001. The next prime is 3128851027. The reversal of 3128851025 is 5201588213.

It can be written as a sum of positive squares in 6 ways, for example, as 173080336 + 2955770689 = 13156^2 + 54367^2 .

It is not a de Polignac number, because 3128851025 - 2¹⁰ = 3128850001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3128851027) 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, 1179374 + ... + 1182023.

It is an arithmetic number, because the mean of its divisors is an integer number (329415021).

Almost surely, 2^3128851025 is an apocalyptic number.

It is an amenable number.

3128851025 is a deficient number, since it is larger than the sum of its proper divisors (824129227).

3128851025 is a wasteful number, since it uses less digits than its factorization.

3128851025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361460 (or 2361455 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 3128851025 is about 55936.1334469947. The cubic root of 3128851025 is about 1462.6091807355.

The spelling of 3128851025 in words is "three billion, one hundred twenty-eight million, eight hundred fifty-one thousand, twenty-five".