23154165 has 24 divisors (see below), whose sum is σ = 40704768. Its totient is φ = 12173280.

The previous prime is 23154161. The next prime is 23154181. The reversal of 23154165 is 56145132.

It is not a de Polignac number, because 23154165 - 2² = 23154161 is a prime.

It is a super-2 number, since 2×23154165² = 1072230713694450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154161) 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, 429 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (1696032).

Almost surely, 2^23154165 is an apocalyptic number.

It is an amenable number.

23154165 is a deficient number, since it is larger than the sum of its proper divisors (17550603).

23154165 is a wasteful number, since it uses less digits than its factorization.

23154165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7329 (or 7326 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 23154165 is about 4811.8774922061. The cubic root of 23154165 is about 285.0206817863.

Adding to 23154165 its reverse (56145132), we get a palindrome (79299297).

The spelling of 23154165 in words is "twenty-three million, one hundred fifty-four thousand, one hundred sixty-five".