18134145 has 16 divisors (see below), whose sum is σ = 32238720. Its totient is φ = 9671472.

The previous prime is 18134131. The next prime is 18134147. The reversal of 18134145 is 54143181.

It is a happy number.

It is not a de Polignac number, because 18134145 - 2⁸ = 18133889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (18134147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67029 + ... + 67298.

It is an arithmetic number, because the mean of its divisors is an integer number (2014920).

Almost surely, 2^18134145 is an apocalyptic number.

18134145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18134145 is a deficient number, since it is larger than the sum of its proper divisors (14104575).

18134145 is a wasteful number, since it uses less digits than its factorization.

18134145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134341 (or 134335 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 18134145 is about 4258.4204818219. The cubic root of 18134145 is about 262.7235646436.

The spelling of 18134145 in words is "eighteen million, one hundred thirty-four thousand, one hundred forty-five".