23318253 has 16 divisors (see below), whose sum is σ = 39480960. Its totient is φ = 13324608.

The previous prime is 23318249. The next prime is 23318257. The reversal of 23318253 is 35281332.

It is an interprime number because it is at equal distance from previous prime (23318249) and next prime (23318257).

It is not a de Polignac number, because 23318253 - 2² = 23318249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23318257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61500 + ... + 61877.

It is an arithmetic number, because the mean of its divisors is an integer number (2467560).

Almost surely, 2^23318253 is an apocalyptic number.

It is an amenable number.

23318253 is a deficient number, since it is larger than the sum of its proper divisors (16162707).

23318253 is a wasteful number, since it uses less digits than its factorization.

23318253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123393 (or 123387 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 23318253 is about 4828.8977003039. The cubic root of 23318253 is about 285.6923885480.

Adding to 23318253 its reverse (35281332), we get a palindrome (58599585).

The spelling of 23318253 in words is "twenty-three million, three hundred eighteen thousand, two hundred fifty-three".