18125894 has 16 divisors (see below), whose sum is σ = 27841968. Its totient is φ = 8847072.

The previous prime is 18125857. The next prime is 18125897. The reversal of 18125894 is 49852181.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18125897) 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, 32264 + ... + 32820.

It is an arithmetic number, because the mean of its divisors is an integer number (1740123).

Almost surely, 2^18125894 is an apocalyptic number.

18125894 is a deficient number, since it is larger than the sum of its proper divisors (9716074).

18125894 is a wasteful number, since it uses less digits than its factorization.

18125894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919.

The product of its digits is 23040, while the sum is 38.

The square root of 18125894 is about 4257.4515851622. The cubic root of 18125894 is about 262.6837123652.

The spelling of 18125894 in words is "eighteen million, one hundred twenty-five thousand, eight hundred ninety-four".