18163245 has 8 divisors (see below), whose sum is σ = 29061216. Its totient is φ = 9687056.

The previous prime is 18163207. The next prime is 18163247. The reversal of 18163245 is 54236181.

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 18163245 - 2¹¹ = 18161197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18163247) 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, 605427 + ... + 605456.

It is an arithmetic number, because the mean of its divisors is an integer number (3632652).

Almost surely, 2^18163245 is an apocalyptic number.

18163245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18163245 is a deficient number, since it is larger than the sum of its proper divisors (10897971).

18163245 is a wasteful number, since it uses less digits than its factorization.

18163245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210891.

The product of its digits is 5760, while the sum is 30.

The square root of 18163245 is about 4261.8358720157. The cubic root of 18163245 is about 262.8640210387.

The spelling of 18163245 in words is "eighteen million, one hundred sixty-three thousand, two hundred forty-five".