23641147 has 2 divisors, whose sum is σ = 23641148. Its totient is φ = 23641146.

The previous prime is 23641129. The next prime is 23641157. The reversal of 23641147 is 74114632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23641147 - 2⁷ = 23641019 is a prime.

It is not a weakly prime, because it can be changed into another prime (23641157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11820573 + 11820574.

It is an arithmetic number, because the mean of its divisors is an integer number (11820574).

Almost surely, 2^23641147 is an apocalyptic number.

23641147 is a deficient number, since it is larger than the sum of its proper divisors (1).

23641147 is an equidigital number, since it uses as much as digits as its factorization.

23641147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 23641147 is about 4862.2162642153. The cubic root of 23641147 is about 287.0050341681.

Adding to 23641147 its reverse (74114632), we get a palindrome (97755779).

The spelling of 23641147 in words is "twenty-three million, six hundred forty-one thousand, one hundred forty-seven".