18208195 has 8 divisors (see below), whose sum is σ = 22208400. Its totient is φ = 14327520.

The previous prime is 18208189. The next prime is 18208231. The reversal of 18208195 is 59180281.

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

It is not a de Polignac number, because 18208195 - 2¹¹ = 18206147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18208195.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29545 + ... + 30154.

It is an arithmetic number, because the mean of its divisors is an integer number (2776050).

Almost surely, 2^18208195 is an apocalyptic number.

18208195 is a deficient number, since it is larger than the sum of its proper divisors (4000205).

18208195 is an equidigital number, since it uses as much as digits as its factorization.

18208195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59765.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 18208195 is about 4267.1061622603. The cubic root of 18208195 is about 263.0806857741.

The spelling of 18208195 in words is "eighteen million, two hundred eight thousand, one hundred ninety-five".