23004145 has 16 divisors (see below), whose sum is σ = 29472768. Its totient is φ = 17176320.

The previous prime is 23004143. The next prime is 23004161. The reversal of 23004145 is 54140032.

It is not a de Polignac number, because 23004145 - 2¹ = 23004143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23004143) 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, 9730 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (1842048).

Almost surely, 2^23004145 is an apocalyptic number.

It is an amenable number.

23004145 is a deficient number, since it is larger than the sum of its proper divisors (6468623).

23004145 is a wasteful number, since it uses less digits than its factorization.

23004145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23004145 is about 4796.2636499675. The cubic root of 23004145 is about 284.4037807686.

Adding to 23004145 its reverse (54140032), we get a palindrome (77144177).

The spelling of 23004145 in words is "twenty-three million, four thousand, one hundred forty-five".