18095905 has 16 divisors (see below), whose sum is σ = 23531904. Its totient is φ = 13305600.

The previous prime is 18095887. The next prime is 18095911. The reversal of 18095905 is 50959081.

It is not a de Polignac number, because 18095905 - 2⁹ = 18095393 is a prime.

It is a Duffinian 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, 1180 + ... + 6130.

It is an arithmetic number, because the mean of its divisors is an integer number (1470744).

Almost surely, 2^18095905 is an apocalyptic number.

It is an amenable number.

18095905 is a deficient number, since it is larger than the sum of its proper divisors (5435999).

18095905 is a wasteful number, since it uses less digits than its factorization.

18095905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 18095905 is about 4253.9281846312. The cubic root of 18095905 is about 262.5387637388.

The spelling of 18095905 in words is "eighteen million, ninety-five thousand, nine hundred five".