23004155 has 16 divisors (see below), whose sum is σ = 29176320. Its totient is φ = 17363808.

The previous prime is 23004143. The next prime is 23004161. The reversal of 23004155 is 55140032.

It is a cyclic number.

It is not a de Polignac number, because 23004155 - 2¹⁰ = 23003131 is a prime.

It is a super-2 number, since 2×23004155² = 1058382294528050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43724 + ... + 44246.

It is an arithmetic number, because the mean of its divisors is an integer number (1823520).

Almost surely, 2^23004155 is an apocalyptic number.

23004155 is a deficient number, since it is larger than the sum of its proper divisors (6172165).

23004155 is a wasteful number, since it uses less digits than its factorization.

23004155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 23004155 is about 4796.2646924456. The cubic root of 23004155 is about 284.4038219791.

Adding to 23004155 its reverse (55140032), we get a palindrome (78144187).

The spelling of 23004155 in words is "twenty-three million, four thousand, one hundred fifty-five".