2125790109 has 16 divisors (see below), whose sum is σ = 3334573440. Its totient is φ = 1333828800.

The previous prime is 2125790101. The next prime is 2125790113. The reversal of 2125790109 is 9010975212.

It is not a de Polignac number, because 2125790109 - 2³ = 2125790101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125790101) 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, 2315217 + ... + 2316134.

It is an arithmetic number, because the mean of its divisors is an integer number (208410840).

Almost surely, 2^2125790109 is an apocalyptic number.

It is an amenable number.

2125790109 is a deficient number, since it is larger than the sum of its proper divisors (1208783331).

2125790109 is a wasteful number, since it uses less digits than its factorization.

2125790109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631377 (or 4631371 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 2125790109 is about 46106.2914253576. The cubic root of 2125790109 is about 1285.8001161907.

The spelling of 2125790109 in words is "two billion, one hundred twenty-five million, seven hundred ninety thousand, one hundred nine".