23130865 has 8 divisors (see below), whose sum is σ = 27785088. Its totient is φ = 18486000.

The previous prime is 23130839. The next prime is 23130869. The reversal of 23130865 is 56803132.

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

It is not a de Polignac number, because 23130865 - 2²³ = 14742257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23130869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5490 + ... + 8740.

It is an arithmetic number, because the mean of its divisors is an integer number (3473136).

Almost surely, 2^23130865 is an apocalyptic number.

It is an amenable number.

23130865 is a deficient number, since it is larger than the sum of its proper divisors (4654223).

23130865 is a wasteful number, since it uses less digits than its factorization.

23130865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23130865 is about 4809.4557904195. The cubic root of 23130865 is about 284.9250444105.

Adding to 23130865 its reverse (56803132), we get a palindrome (79933997).

The spelling of 23130865 in words is "twenty-three million, one hundred thirty thousand, eight hundred sixty-five".