10818197 has 6 divisors (see below), whose sum is σ = 11714562. Its totient is φ = 9985872.

The previous prime is 10818191. The next prime is 10818233. The reversal of 10818197 is 79181801.

It can be written as a sum of positive squares in 3 ways, for example, as 1540081 + 9278116 = 1241^2 + 3046^2 .

It is not a de Polignac number, because 10818197 - 2⁶ = 10818133 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 (10818191) 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, 31838 + ... + 32175.

It is an arithmetic number, because the mean of its divisors is an integer number (1952427).

Almost surely, 2^10818197 is an apocalyptic number.

It is an amenable number.

10818197 is a deficient number, since it is larger than the sum of its proper divisors (896365).

10818197 is an equidigital number, since it uses as much as digits as its factorization.

10818197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64039 (or 64026 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 10818197 is about 3289.1027651930. The cubic root of 10818197 is about 221.1659652985.

Adding to 10818197 its reverse (79181801), we get a palindrome (89999998).

The spelling of 10818197 in words is "ten million, eight hundred eighteen thousand, one hundred ninety-seven".