23525147 has 2 divisors, whose sum is σ = 23525148. Its totient is φ = 23525146.

The previous prime is 23525141. The next prime is 23525167. The reversal of 23525147 is 74152532.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23525147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23525141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11762573 + 11762574.

It is an arithmetic number, because the mean of its divisors is an integer number (11762574).

Almost surely, 2^23525147 is an apocalyptic number.

23525147 is a deficient number, since it is larger than the sum of its proper divisors (1).

23525147 is an equidigital number, since it uses as much as digits as its factorization.

23525147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 23525147 is about 4850.2728789213. The cubic root of 23525147 is about 286.5348485053.

Adding to 23525147 its reverse (74152532), we get a palindrome (97677679).

The spelling of 23525147 in words is "twenty-three million, five hundred twenty-five thousand, one hundred forty-seven".