23125109 has 24 divisors (see below), whose sum is σ = 28864800. Its totient is φ = 18416160.

The previous prime is 23125087. The next prime is 23125127. The reversal of 23125109 is 90152132.

It is a de Polignac number, because none of the positive numbers 2^k-23125109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23125129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54719 + ... + 55139.

It is an arithmetic number, because the mean of its divisors is an integer number (1202700).

Almost surely, 2^23125109 is an apocalyptic number.

It is an amenable number.

23125109 is a deficient number, since it is larger than the sum of its proper divisors (5739691).

23125109 is a wasteful number, since it uses less digits than its factorization.

23125109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 23125109 is about 4808.8573486848. The cubic root of 23125109 is about 284.9014083927.

The spelling of 23125109 in words is "twenty-three million, one hundred twenty-five thousand, one hundred nine".