23289165 has 24 divisors (see below), whose sum is σ = 40480440. Its totient is φ = 12386304.

The previous prime is 23289163. The next prime is 23289173. The reversal of 23289165 is 56198232.

It can be written as a sum of positive squares in 4 ways, for example, as 736164 + 22553001 = 858^2 + 4749^2 .

It is not a de Polignac number, because 23289165 - 2¹ = 23289163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23289163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29901 + ... + 30669.

It is an arithmetic number, because the mean of its divisors is an integer number (1686685).

Almost surely, 2^23289165 is an apocalyptic number.

It is an amenable number.

23289165 is a deficient number, since it is larger than the sum of its proper divisors (17191275).

23289165 is a wasteful number, since it uses less digits than its factorization.

23289165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1450 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 23289165 is about 4825.8848929497. The cubic root of 23289165 is about 285.5735449097.

The spelling of 23289165 in words is "twenty-three million, two hundred eighty-nine thousand, one hundred sixty-five".