23015199 has 4 divisors (see below), whose sum is σ = 30686936. Its totient is φ = 15343464.

The previous prime is 23015159. The next prime is 23015207. The reversal of 23015199 is 99151032.

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

It is not a de Polignac number, because 23015199 - 2¹² = 23011103 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 (23015119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3835864 + ... + 3835869.

It is an arithmetic number, because the mean of its divisors is an integer number (7671734).

Almost surely, 2^23015199 is an apocalyptic number.

23015199 is a deficient number, since it is larger than the sum of its proper divisors (7671737).

23015199 is an equidigital number, since it uses as much as digits as its factorization.

23015199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7671736.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 23015199 is about 4797.4158669017. The cubic root of 23015199 is about 284.4493275744.

The spelling of 23015199 in words is "twenty-three million, fifteen thousand, one hundred ninety-nine".