18314197 has 6 divisors (see below), whose sum is σ = 20130614. Its totient is φ = 16649160.

The previous prime is 18314189. The next prime is 18314201. The reversal of 18314197 is 79141381.

It can be written as a sum of positive squares in only one way, i.e., 18309841 + 4356 = 4279^2 + 66^2 .

It is not a de Polignac number, because 18314197 - 2³ = 18314189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18314137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75558 + ... + 75799.

Almost surely, 2^18314197 is an apocalyptic number.

It is an amenable number.

18314197 is a deficient number, since it is larger than the sum of its proper divisors (1816417).

18314197 is a wasteful number, since it uses less digits than its factorization.

18314197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151379 (or 151368 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 18314197 is about 4279.5089671597. The cubic root of 18314197 is about 263.5902207536.

The spelling of 18314197 in words is "eighteen million, three hundred fourteen thousand, one hundred ninety-seven".