2125907125 has 32 divisors (see below), whose sum is σ = 2697986304. Its totient is φ = 1672228800.

The previous prime is 2125907123. The next prime is 2125907129. The reversal of 2125907125 is 5217095212.

It is not a de Polignac number, because 2125907125 - 2¹ = 2125907123 is a prime.

It is a super-2 number, since 2×2125907125² = 9038962208251531250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125907123) 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 31 ways as a sum of consecutive naturals, for example, 2098119 + ... + 2099131.

It is an arithmetic number, because the mean of its divisors is an integer number (84312072).

Almost surely, 2^2125907125 is an apocalyptic number.

2125907125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125907125 is a deficient number, since it is larger than the sum of its proper divisors (572079179).

2125907125 is a wasteful number, since it uses less digits than its factorization.

2125907125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2125907125 is about 46107.5603887258. The cubic root of 2125907125 is about 1285.8237084267.

The spelling of 2125907125 in words is "two billion, one hundred twenty-five million, nine hundred seven thousand, one hundred twenty-five".