23015899 has 2 divisors, whose sum is σ = 23015900. Its totient is φ = 23015898.

The previous prime is 23015851. The next prime is 23015917. The reversal of 23015899 is 99851032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23015899 - 2¹³ = 23007707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23015809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11507949 + 11507950.

It is an arithmetic number, because the mean of its divisors is an integer number (11507950).

Almost surely, 2^23015899 is an apocalyptic number.

23015899 is a deficient number, since it is larger than the sum of its proper divisors (1).

23015899 is an equidigital number, since it uses as much as digits as its factorization.

23015899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 23015899 is about 4797.4888222903. The cubic root of 23015899 is about 284.4522113572.

It can be divided in two parts, 230 and 15899, that added together give a square (16129 = 127²).

The spelling of 23015899 in words is "twenty-three million, fifteen thousand, eight hundred ninety-nine".