1803345 has 8 divisors (see below), whose sum is σ = 2885376. Its totient is φ = 961776.

The previous prime is 1803337. The next prime is 1803349. The reversal of 1803345 is 5433081.

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

It is not a de Polignac number, because 1803345 - 2³ = 1803337 is a prime.

1803345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1803349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60097 + ... + 60126.

It is an arithmetic number, because the mean of its divisors is an integer number (360672).

2^1803345 is an apocalyptic number.

1803345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1803345 is a deficient number, since it is larger than the sum of its proper divisors (1082031).

1803345 is a wasteful number, since it uses less digits than its factorization.

1803345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120231.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1803345 is about 1342.8868157816. The cubic root of 1803345 is about 121.7193450081.

The spelling of 1803345 in words is "one million, eight hundred three thousand, three hundred forty-five".