1818164 has 6 divisors (see below), whose sum is σ = 3181794. Its totient is φ = 909080.

The previous prime is 1818163. The next prime is 1818199. The reversal of 1818164 is 4618181.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 128164 = 1300^2 + 358^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227267 + ... + 227274.

It is an arithmetic number, because the mean of its divisors is an integer number (530299).

2^1818164 is an apocalyptic number.

It is an amenable number.

1818164 is a deficient number, since it is larger than the sum of its proper divisors (1363630).

1818164 is a wasteful number, since it uses less digits than its factorization.

1818164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454545 (or 454543 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 1818164 is about 1348.3931177516. The cubic root of 1818164 is about 122.0518457417.

The spelling of 1818164 in words is "one million, eight hundred eighteen thousand, one hundred sixty-four".