23253157 has 4 divisors (see below), whose sum is σ = 24055020. Its totient is φ = 22451296.

The previous prime is 23253151. The next prime is 23253163. The reversal of 23253157 is 75135232.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23253151) and next prime (23253163).

It can be written as a sum of positive squares in 2 ways, for example, as 8767521 + 14485636 = 2961^2 + 3806^2 .

It is a cyclic number.

It is not a de Polignac number, because 23253157 - 2³ = 23253149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23253151) 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 3 ways as a sum of consecutive naturals, for example, 400888 + ... + 400945.

It is an arithmetic number, because the mean of its divisors is an integer number (6013755).

Almost surely, 2^23253157 is an apocalyptic number.

It is an amenable number.

23253157 is a deficient number, since it is larger than the sum of its proper divisors (801863).

23253157 is an equidigital number, since it uses as much as digits as its factorization.

23253157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801862.

The product of its digits is 6300, while the sum is 28.

The square root of 23253157 is about 4822.1527350344. The cubic root of 23253157 is about 285.4262913645.

Adding to 23253157 its reverse (75135232), we get a palindrome (98388389).

The spelling of 23253157 in words is "twenty-three million, two hundred fifty-three thousand, one hundred fifty-seven".