18158054 has 4 divisors (see below), whose sum is σ = 27237084. Its totient is φ = 9079026.

The previous prime is 18158029. The next prime is 18158099. The reversal of 18158054 is 45085181.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18158054.

It is a congruent number.

It is an unprimeable number.

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, 4539512 + ... + 4539515.

It is an arithmetic number, because the mean of its divisors is an integer number (6809271).

Almost surely, 2^18158054 is an apocalyptic number.

18158054 is a deficient number, since it is larger than the sum of its proper divisors (9079030).

18158054 is an equidigital number, since it uses as much as digits as its factorization.

18158054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9079029.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 18158054 is about 4261.2268186521. The cubic root of 18158054 is about 262.8389767410.

The spelling of 18158054 in words is "eighteen million, one hundred fifty-eight thousand, fifty-four".