18146875 has 12 divisors (see below), whose sum is σ = 22686048. Its totient is φ = 14515000.

The previous prime is 18146831. The next prime is 18146897. The reversal of 18146875 is 57864181.

It is a de Polignac number, because none of the positive numbers 2^k-18146875 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 11 ways as a sum of consecutive naturals, for example, 222 + ... + 6028.

It is an arithmetic number, because the mean of its divisors is an integer number (1890504).

Almost surely, 2^18146875 is an apocalyptic number.

18146875 is a deficient number, since it is larger than the sum of its proper divisors (4539173).

18146875 is an frugal number, since it uses more digits than its factorization.

18146875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832 (or 5812 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 18146875 is about 4259.9149052534. The cubic root of 18146875 is about 262.7850267581.

The spelling of 18146875 in words is "eighteen million, one hundred forty-six thousand, eight hundred seventy-five".