1812830803 has 32 divisors (see below), whose sum is σ = 2257920000. Its totient is φ = 1451630880.

The previous prime is 1812830791. The next prime is 1812830809. The reversal of 1812830803 is 3080382181.

It is not a de Polignac number, because 1812830803 - 2⁵ = 1812830771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1812830809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305418 + ... + 311296.

It is an arithmetic number, because the mean of its divisors is an integer number (70560000).

Almost surely, 2^1812830803 is an apocalyptic number.

1812830803 is a deficient number, since it is larger than the sum of its proper divisors (445089197).

1812830803 is an equidigital number, since it uses as much as digits as its factorization.

1812830803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960 (or 5946 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1812830803 is about 42577.3508217691. The cubic root of 1812830803 is about 1219.3239116590.

The spelling of 1812830803 in words is "one billion, eight hundred twelve million, eight hundred thirty thousand, eight hundred three".