23274157 has 2 divisors, whose sum is σ = 23274158. Its totient is φ = 23274156.

The previous prime is 23274133. The next prime is 23274169. The reversal of 23274157 is 75147232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19660356 + 3613801 = 4434^2 + 1901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23274157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23274127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11637078 + 11637079.

It is an arithmetic number, because the mean of its divisors is an integer number (11637079).

Almost surely, 2^23274157 is an apocalyptic number.

It is an amenable number.

23274157 is a deficient number, since it is larger than the sum of its proper divisors (1).

23274157 is an equidigital number, since it uses as much as digits as its factorization.

23274157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 23274157 is about 4824.3296943721. The cubic root of 23274157 is about 285.5121886419.

The spelling of 23274157 in words is "twenty-three million, two hundred seventy-four thousand, one hundred fifty-seven".