23409125 has 8 divisors (see below), whose sum is σ = 29214744. Its totient is φ = 18727200.

The previous prime is 23409109. The next prime is 23409131. The reversal of 23409125 is 52190432.

It can be written as a sum of positive squares in 4 ways, for example, as 6360484 + 17048641 = 2522^2 + 4129^2 .

It is not a de Polignac number, because 23409125 - 2⁴ = 23409109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23409094 and 23409103.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 93512 + ... + 93761.

It is an arithmetic number, because the mean of its divisors is an integer number (3651843).

Almost surely, 2^23409125 is an apocalyptic number.

23409125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23409125 is a deficient number, since it is larger than the sum of its proper divisors (5805619).

23409125 is an equidigital number, since it uses as much as digits as its factorization.

23409125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187288 (or 187278 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 23409125 is about 4838.2977378413. The cubic root of 23409125 is about 286.0630250527.

Adding to 23409125 its reverse (52190432), we get a palindrome (75599557).

The spelling of 23409125 in words is "twenty-three million, four hundred nine thousand, one hundred twenty-five".