23266157 has 2 divisors, whose sum is σ = 23266158. Its totient is φ = 23266156.

The previous prime is 23266141. The next prime is 23266169. The reversal of 23266157 is 75166232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15319396 + 7946761 = 3914^2 + 2819^2 .

It is a cyclic number.

It is not a de Polignac number, because 23266157 - 2⁴ = 23266141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23266357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11633078 + 11633079.

It is an arithmetic number, because the mean of its divisors is an integer number (11633079).

Almost surely, 2^23266157 is an apocalyptic number.

It is an amenable number.

23266157 is a deficient number, since it is larger than the sum of its proper divisors (1).

23266157 is an equidigital number, since it uses as much as digits as its factorization.

23266157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 23266157 is about 4823.5004923810. The cubic root of 23266157 is about 285.4794719645.

The spelling of 23266157 in words is "twenty-three million, two hundred sixty-six thousand, one hundred fifty-seven".