18144195 has 16 divisors (see below), whose sum is σ = 29084832. Its totient is φ = 9658880.

The previous prime is 18144193. The next prime is 18144197. The reversal of 18144195 is 59144181.

It is an interprime number because it is at equal distance from previous prime (18144193) and next prime (18144197).

It is not a de Polignac number, because 18144195 - 2¹ = 18144193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18144193) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12529 + ... + 13901.

It is an arithmetic number, because the mean of its divisors is an integer number (1817802).

Almost surely, 2^18144195 is an apocalyptic number.

18144195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18144195 is a deficient number, since it is larger than the sum of its proper divisors (10940637).

18144195 is a wasteful number, since it uses less digits than its factorization.

18144195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262.

The product of its digits is 5760, while the sum is 33.

The square root of 18144195 is about 4259.6003333646. The cubic root of 18144195 is about 262.7720897548.

The spelling of 18144195 in words is "eighteen million, one hundred forty-four thousand, one hundred ninety-five".