23452157 has 12 divisors (see below), whose sum is σ = 25110624. Its totient is φ = 21889560.

The previous prime is 23452147. The next prime is 23452159. The reversal of 23452157 is 75125432.

It is a happy number.

It is not a de Polignac number, because 23452157 - 2¹⁰ = 23451133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23452159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22232 + ... + 23262.

It is an arithmetic number, because the mean of its divisors is an integer number (2092552).

Almost surely, 2^23452157 is an apocalyptic number.

It is an amenable number.

23452157 is a deficient number, since it is larger than the sum of its proper divisors (1658467).

23452157 is a wasteful number, since it uses less digits than its factorization.

23452157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1097 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 23452157 is about 4842.7427146195. The cubic root of 23452157 is about 286.2382035908.

Adding to 23452157 its reverse (75125432), we get a palindrome (98577589).

The spelling of 23452157 in words is "twenty-three million, four hundred fifty-two thousand, one hundred fifty-seven".