23013015 has 16 divisors (see below), whose sum is σ = 37149408. Its totient is φ = 12164096.

The previous prime is 23013007. The next prime is 23013059. The reversal of 23013015 is 51031032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23013015 - 2³ = 23013007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 23012985 and 23013003.

It is a congruent number.

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, 5094 + ... + 8483.

It is an arithmetic number, because the mean of its divisors is an integer number (2321838).

Almost surely, 2^23013015 is an apocalyptic number.

23013015 is a deficient number, since it is larger than the sum of its proper divisors (14136393).

23013015 is a wasteful number, since it uses less digits than its factorization.

23013015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13698.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 23013015 is about 4797.1882389583. The cubic root of 23013015 is about 284.4403297959.

Adding to 23013015 its reverse (51031032), we get a palindrome (74044047).

The spelling of 23013015 in words is "twenty-three million, thirteen thousand, fifteen".