18012475 has 24 divisors (see below), whose sum is σ = 25328240. Its totient is φ = 12597120.

The previous prime is 18012439. The next prime is 18012499. The reversal of 18012475 is 57421081.

It is not a de Polignac number, because 18012475 - 2¹⁵ = 17979707 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4717 + ... + 7633.

Almost surely, 2^18012475 is an apocalyptic number.

18012475 is a deficient number, since it is larger than the sum of its proper divisors (7315765).

18012475 is a wasteful number, since it uses less digits than its factorization.

18012475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 18012475 is about 4244.1106253254. The cubic root of 18012475 is about 262.1346694189.

The spelling of 18012475 in words is "eighteen million, twelve thousand, four hundred seventy-five".