1818198182 has 4 divisors (see below), whose sum is σ = 2727297276. Its totient is φ = 909099090.

The previous prime is 1818198133. The next prime is 1818198199. The reversal of 1818198182 is 2818918181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2818918181 = 101 ⋅27910081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454549544 + ... + 454549547.

It is an arithmetic number, because the mean of its divisors is an integer number (681824319).

Almost surely, 2^1818198182 is an apocalyptic number.

1818198182 is a deficient number, since it is larger than the sum of its proper divisors (909099094).

1818198182 is an equidigital number, since it uses as much as digits as its factorization.

1818198182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909099093.

The product of its digits is 73728, while the sum is 47.

The square root of 1818198182 is about 42640.3351534671. The cubic root of 1818198182 is about 1220.5261060673.

The spelling of 1818198182 in words is "one billion, eight hundred eighteen million, one hundred ninety-eight thousand, one hundred eighty-two".