23299157 has 12 divisors (see below), whose sum is σ = 27229356. Its totient is φ = 19877760.

The previous prime is 23299139. The next prime is 23299181. The reversal of 23299157 is 75199232.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 12103441 = 3346^2 + 3479^2 .

It is not a de Polignac number, because 23299157 - 2⁸ = 23298901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23299157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23299457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10823 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (2269113).

Almost surely, 2^23299157 is an apocalyptic number.

It is an amenable number.

23299157 is a deficient number, since it is larger than the sum of its proper divisors (3930199).

23299157 is a wasteful number, since it uses less digits than its factorization.

23299157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2221 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 23299157 is about 4826.9200324845. The cubic root of 23299157 is about 285.6143799629.

The spelling of 23299157 in words is "twenty-three million, two hundred ninety-nine thousand, one hundred fifty-seven".