18023164 has 6 divisors (see below), whose sum is σ = 31540544. Its totient is φ = 9011580.

The previous prime is 18023113. The next prime is 18023167. The reversal of 18023164 is 46132081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18023167) 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 as a sum of consecutive naturals, namely, 2252892 + ... + 2252899.

Almost surely, 2^18023164 is an apocalyptic number.

It is an amenable number.

18023164 is a deficient number, since it is larger than the sum of its proper divisors (13517380).

18023164 is a wasteful number, since it uses less digits than its factorization.

18023164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505795 (or 4505793 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18023164 is about 4245.3697129932. The cubic root of 18023164 is about 262.1865113306.

The spelling of 18023164 in words is "eighteen million, twenty-three thousand, one hundred sixty-four".