182818197 has 6 divisors (see below), whose sum is σ = 264070742. Its totient is φ = 121878792.

The previous prime is 182818189. The next prime is 182818201. The reversal of 182818197 is 791818281.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 112911876 + 69906321 = 10626^2 + 8361^2 .

It is not a de Polignac number, because 182818197 - 2³ = 182818189 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 (182818127) 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, 10156558 + ... + 10156575.

Almost surely, 2^182818197 is an apocalyptic number.

It is an amenable number.

182818197 is a deficient number, since it is larger than the sum of its proper divisors (81252545).

182818197 is a wasteful number, since it uses less digits than its factorization.

182818197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20313139 (or 20313136 counting only the distinct ones).

The product of its digits is 64512, while the sum is 45.

The square root of 182818197 is about 13521.0279564832. The cubic root of 182818197 is about 567.5530656065.

The spelling of 182818197 in words is "one hundred eighty-two million, eight hundred eighteen thousand, one hundred ninety-seven".