18012093 has 16 divisors (see below), whose sum is σ = 26561856. Its totient is φ = 10765440.

The previous prime is 18012091. The next prime is 18012097. The reversal of 18012093 is 39021081.

It is not a de Polignac number, because 18012093 - 2¹ = 18012091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330 + ... + 6147.

It is an arithmetic number, because the mean of its divisors is an integer number (1660116).

Almost surely, 2^18012093 is an apocalyptic number.

It is an amenable number.

18012093 is a deficient number, since it is larger than the sum of its proper divisors (8549763).

18012093 is a wasteful number, since it uses less digits than its factorization.

18012093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7564.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 18012093 is about 4244.0656215473. The cubic root of 18012093 is about 262.1328163300.

The spelling of 18012093 in words is "eighteen million, twelve thousand, ninety-three".