18375275 has 12 divisors (see below), whose sum is σ = 23776752. Its totient is φ = 14060640.

The previous prime is 18375263. The next prime is 18375277. The reversal of 18375275 is 57257381.

It is a happy number.

It is not a de Polignac number, because 18375275 - 2⁶ = 18375211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18375277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15404 + ... + 16553.

It is an arithmetic number, because the mean of its divisors is an integer number (1981396).

Almost surely, 2^18375275 is an apocalyptic number.

18375275 is a deficient number, since it is larger than the sum of its proper divisors (5401477).

18375275 is a wasteful number, since it uses less digits than its factorization.

18375275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31990 (or 31985 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 18375275 is about 4286.6391264019. The cubic root of 18375275 is about 263.8829208048.

The spelling of 18375275 in words is "eighteen million, three hundred seventy-five thousand, two hundred seventy-five".