1813066 has 8 divisors (see below), whose sum is σ = 2807424. Its totient is φ = 877260.

The previous prime is 1813039. The next prime is 1813073. The reversal of 1813066 is 6603181.

1813066 = 54² + 55² + ... + 177².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1813066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14560 + ... + 14683.

It is an arithmetic number, because the mean of its divisors is an integer number (350928).

2^1813066 is an apocalyptic number.

1813066 is a deficient number, since it is larger than the sum of its proper divisors (994358).

1813066 is a wasteful number, since it uses less digits than its factorization.

1813066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29276.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1813066 is about 1346.5013924984. The cubic root of 1813066 is about 121.9376641148.

The spelling of 1813066 in words is "one million, eight hundred thirteen thousand, sixty-six".