18900075 has 12 divisors (see below), whose sum is σ = 31248248. Its totient is φ = 10080000.

The previous prime is 18900071. The next prime is 18900103. The reversal of 18900075 is 57000981.

It is not a de Polignac number, because 18900075 - 2² = 18900071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18900071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125926 + ... + 126075.

Almost surely, 2^18900075 is an apocalyptic number.

18900075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18900075 is a deficient number, since it is larger than the sum of its proper divisors (12348173).

18900075 is a wasteful number, since it uses less digits than its factorization.

18900075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252014 (or 252009 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 18900075 is about 4347.4216496678. The cubic root of 18900075 is about 266.3715528652.

The spelling of 18900075 in words is "eighteen million, nine hundred thousand, seventy-five".