1813180 has 12 divisors (see below), whose sum is σ = 3807720. Its totient is φ = 725264.

The previous prime is 1813177. The next prime is 1813211. The reversal of 1813180 is 813181.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 45310 + ... + 45349.

It is an arithmetic number, because the mean of its divisors is an integer number (317310).

2^1813180 is an apocalyptic number.

1813180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1813180 is an abundant number, since it is smaller than the sum of its proper divisors (1994540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1813180 is a wasteful number, since it uses less digits than its factorization.

1813180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90668 (or 90666 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1813180 is about 1346.5437237609. The cubic root of 1813180 is about 121.9402197493.

Subtracting from 1813180 its reverse (813181), we obtain a palindrome (999999).

The spelling of 1813180 in words is "one million, eight hundred thirteen thousand, one hundred eighty".