18945134 has 8 divisors (see below), whose sum is σ = 30603720. Its totient is φ = 8743896.

The previous prime is 18945131. The next prime is 18945139. The reversal of 18945134 is 43154981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18945094 and 18945103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18945131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364304 + ... + 364355.

It is an arithmetic number, because the mean of its divisors is an integer number (3825465).

Almost surely, 2^18945134 is an apocalyptic number.

18945134 is a deficient number, since it is larger than the sum of its proper divisors (11658586).

18945134 is a wasteful number, since it uses less digits than its factorization.

18945134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728674.

The product of its digits is 17280, while the sum is 35.

The square root of 18945134 is about 4352.6008316867. The cubic root of 18945134 is about 266.5830671972.

The spelling of 18945134 in words is "eighteen million, nine hundred forty-five thousand, one hundred thirty-four".