23655157 has 2 divisors, whose sum is σ = 23655158. Its totient is φ = 23655156.

The previous prime is 23655131. The next prime is 23655161. The reversal of 23655157 is 75155632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22667121 + 988036 = 4761^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 23655157 - 2¹⁹ = 23130869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23655167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827578 + 11827579.

It is an arithmetic number, because the mean of its divisors is an integer number (11827579).

Almost surely, 2^23655157 is an apocalyptic number.

It is an amenable number.

23655157 is a deficient number, since it is larger than the sum of its proper divisors (1).

23655157 is an equidigital number, since it uses as much as digits as its factorization.

23655157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 34.

The square root of 23655157 is about 4863.6567518689. The cubic root of 23655157 is about 287.0617170708.

The spelling of 23655157 in words is "twenty-three million, six hundred fifty-five thousand, one hundred fifty-seven".