18192145 has 8 divisors (see below), whose sum is σ = 21962304. Its totient is φ = 14465904.

The previous prime is 18192143. The next prime is 18192173. The reversal of 18192145 is 54129181.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18192145 - 2¹ = 18192143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18192143) 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 7 ways as a sum of consecutive naturals, for example, 10059 + ... + 11728.

It is an arithmetic number, because the mean of its divisors is an integer number (2745288).

Almost surely, 2^18192145 is an apocalyptic number.

It is an amenable number.

18192145 is a deficient number, since it is larger than the sum of its proper divisors (3770159).

18192145 is a wasteful number, since it uses less digits than its factorization.

18192145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21959.

The product of its digits is 2880, while the sum is 31.

The square root of 18192145 is about 4265.2250819857. The cubic root of 18192145 is about 263.0033636989.

The spelling of 18192145 in words is "eighteen million, one hundred ninety-two thousand, one hundred forty-five".