18114158 has 4 divisors (see below), whose sum is σ = 27171240. Its totient is φ = 9057078.

The previous prime is 18114157. The next prime is 18114167. The reversal of 18114158 is 85141181.

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

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 18114158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18114157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4528538 + ... + 4528541.

It is an arithmetic number, because the mean of its divisors is an integer number (6792810).

Almost surely, 2^18114158 is an apocalyptic number.

18114158 is a deficient number, since it is larger than the sum of its proper divisors (9057082).

18114158 is an equidigital number, since it uses as much as digits as its factorization.

18114158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9057081.

The product of its digits is 1280, while the sum is 29.

The square root of 18114158 is about 4256.0730726810. The cubic root of 18114158 is about 262.6270067182.

The spelling of 18114158 in words is "eighteen million, one hundred fourteen thousand, one hundred fifty-eight".