23725161 has 12 divisors (see below), whose sum is σ = 35451780. Its totient is φ = 15271200.

The previous prime is 23725127. The next prime is 23725171. The reversal of 23725161 is 16152732.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7371225 + 16353936 = 2715^2 + 4044^2 .

It is not a de Polignac number, because 23725161 - 2⁷ = 23725033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23725171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45190 + ... + 45711.

It is an arithmetic number, because the mean of its divisors is an integer number (2954315).

Almost surely, 2^23725161 is an apocalyptic number.

It is an amenable number.

23725161 is a deficient number, since it is larger than the sum of its proper divisors (11726619).

23725161 is a wasteful number, since it uses less digits than its factorization.

23725161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90936 (or 90933 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 23725161 is about 4870.8480781071. The cubic root of 23725161 is about 287.3446106736.

Adding to 23725161 its reverse (16152732), we get a palindrome (39877893).

The spelling of 23725161 in words is "twenty-three million, seven hundred twenty-five thousand, one hundred sixty-one".