18512075 has 6 divisors (see below), whose sum is σ = 22955004. Its totient is φ = 14809640.

The previous prime is 18512069. The next prime is 18512107. The reversal of 18512075 is 57021581.

It is not a de Polignac number, because 18512075 - 2⁸ = 18511819 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 370217 + ... + 370266.

It is an arithmetic number, because the mean of its divisors is an integer number (3825834).

Almost surely, 2^18512075 is an apocalyptic number.

18512075 is a deficient number, since it is larger than the sum of its proper divisors (4442929).

18512075 is an equidigital number, since it uses as much as digits as its factorization.

18512075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740493 (or 740488 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 18512075 is about 4302.5660947858. The cubic root of 18512075 is about 264.5361530908.

The spelling of 18512075 in words is "eighteen million, five hundred twelve thousand, seventy-five".