803145 has 16 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 367104.

The previous prime is 803141. The next prime is 803171. The reversal of 803145 is 541308.

It is not a de Polignac number, because 803145 - 2² = 803141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

803145 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 803145.

It is not an unprimeable number, because it can be changed into a prime (803141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3720 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (91800).

2⁸⁰³¹⁴⁵ is an apocalyptic number.

It is an amenable number.

803145 is a deficient number, since it is larger than the sum of its proper divisors (665655).

803145 is a wasteful number, since it uses less digits than its factorization.

803145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 803145 is about 896.1835749443. The cubic root of 803145 is about 92.9532659169.

The spelling of 803145 in words is "eight hundred three thousand, one hundred forty-five".