18325197 has 40 divisors (see below), whose sum is σ = 30282912. Its totient is φ = 10951200.

The previous prime is 18325183. The next prime is 18325199. The reversal of 18325197 is 79152381.

It is not a de Polignac number, because 18325197 - 2⁸ = 18324941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18325199) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 116643 + ... + 116799.

Almost surely, 2^18325197 is an apocalyptic number.

It is an amenable number.

18325197 is a deficient number, since it is larger than the sum of its proper divisors (11957715).

18325197 is a wasteful number, since it uses less digits than its factorization.

18325197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 302 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 18325197 is about 4280.7939684129. The cubic root of 18325197 is about 263.6429833203.

The spelling of 18325197 in words is "eighteen million, three hundred twenty-five thousand, one hundred ninety-seven".