18134194 has 32 divisors (see below), whose sum is σ = 30643200. Its totient is φ = 7992000.

The previous prime is 18134173. The next prime is 18134197. The reversal of 18134194 is 49143181.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (18134197) 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 in 15 ways as a sum of consecutive naturals, for example, 120019 + ... + 120169.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^18134194 is an apocalyptic number.

18134194 is a deficient number, since it is larger than the sum of its proper divisors (12509006).

18134194 is a wasteful number, since it uses less digits than its factorization.

18134194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 3456, while the sum is 31.

The square root of 18134194 is about 4258.4262351249. The cubic root of 18134194 is about 262.7238012772.

The spelling of 18134194 in words is "eighteen million, one hundred thirty-four thousand, one hundred ninety-four".