1845745 has 16 divisors (see below), whose sum is σ = 2484288. Its totient is φ = 1304640.

The previous prime is 1845731. The next prime is 1845751. The reversal of 1845745 is 5475481.

It is not a de Polignac number, because 1845745 - 2⁵ = 1845713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1845745.

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 15 ways as a sum of consecutive naturals, for example, 1582 + ... + 2488.

It is an arithmetic number, because the mean of its divisors is an integer number (155268).

2^1845745 is an apocalyptic number.

It is an amenable number.

1845745 is a deficient number, since it is larger than the sum of its proper divisors (638543).

1845745 is a wasteful number, since it uses less digits than its factorization.

1845745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its digits is 22400, while the sum is 34.

The square root of 1845745 is about 1358.5819813320. The cubic root of 1845745 is about 122.6659142925.

It can be divided in two parts, 184 and 5745, that added together give a square (5929 = 77²).

The spelling of 1845745 in words is "one million, eight hundred forty-five thousand, seven hundred forty-five".