23000015 has 4 divisors (see below), whose sum is σ = 27600024. Its totient is φ = 18400008.

The previous prime is 23000011. The next prime is 23000027. The reversal of 23000015 is 51000032.

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

It is a cyclic number.

It is not a de Polignac number, because 23000015 - 2² = 23000011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000011) 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, 2299997 + ... + 2300006.

It is an arithmetic number, because the mean of its divisors is an integer number (6900006).

Almost surely, 2^23000015 is an apocalyptic number.

23000015 is a deficient number, since it is larger than the sum of its proper divisors (4600009).

23000015 is an equidigital number, since it uses as much as digits as its factorization.

23000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600008.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 23000015 is about 4795.8330871706. The cubic root of 23000015 is about 284.3867598083.

Adding to 23000015 its reverse (51000032), we get a palindrome (74000047).

The spelling of 23000015 in words is "twenty-three million, fifteen", and thus it is an aban number and an uban number.