23130815 has 8 divisors (see below), whose sum is σ = 28347840. Its totient is φ = 18110752.

The previous prime is 23130803. The next prime is 23130817. The reversal of 23130815 is 51803132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23130815 - 2¹⁶ = 23065279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48980 + ... + 49449.

It is an arithmetic number, because the mean of its divisors is an integer number (3543480).

Almost surely, 2^23130815 is an apocalyptic number.

23130815 is a deficient number, since it is larger than the sum of its proper divisors (5217025).

23130815 is an equidigital number, since it uses as much as digits as its factorization.

23130815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98481.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 23130815 is about 4809.4505923234. The cubic root of 23130815 is about 284.9248391111.

Adding to 23130815 its reverse (51803132), we get a palindrome (74933947).

The spelling of 23130815 in words is "twenty-three million, one hundred thirty thousand, eight hundred fifteen".