23045045 has 4 divisors (see below), whose sum is σ = 27654060. Its totient is φ = 18436032.

The previous prime is 23045041. The next prime is 23045051. The reversal of 23045045 is 54054032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13942756 + 9102289 = 3734^2 + 3017^2 .

It is a cyclic number.

It is not a de Polignac number, because 23045045 - 2² = 23045041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23045045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304500 + ... + 2304509.

It is an arithmetic number, because the mean of its divisors is an integer number (6913515).

Almost surely, 2^23045045 is an apocalyptic number.

It is an amenable number.

23045045 is a deficient number, since it is larger than the sum of its proper divisors (4609015).

23045045 is an equidigital number, since it uses as much as digits as its factorization.

23045045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609014.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 23045045 is about 4800.5254920686. The cubic root of 23045045 is about 284.5722319716.

Adding to 23045045 its reverse (54054032), we get a palindrome (77099077).

The spelling of 23045045 in words is "twenty-three million, forty-five thousand, forty-five".