23625145 has 4 divisors (see below), whose sum is σ = 28350180. Its totient is φ = 18900112.

The previous prime is 23625127. The next prime is 23625149. The reversal of 23625145 is 54152632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17749369 + 5875776 = 4213^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 23625145 - 2⁹ = 23624633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23625149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2362510 + ... + 2362519.

It is an arithmetic number, because the mean of its divisors is an integer number (7087545).

Almost surely, 2^23625145 is an apocalyptic number.

It is an amenable number.

23625145 is a deficient number, since it is larger than the sum of its proper divisors (4725035).

23625145 is an equidigital number, since it uses as much as digits as its factorization.

23625145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725034.

The product of its digits is 7200, while the sum is 28.

The square root of 23625145 is about 4860.5704397735. The cubic root of 23625145 is about 286.9402644517.

Adding to 23625145 its reverse (54152632), we get a palindrome (77777777).

The spelling of 23625145 in words is "twenty-three million, six hundred twenty-five thousand, one hundred forty-five".