1845045 has 32 divisors (see below), whose sum is σ = 3340800. Its totient is φ = 965952.

The previous prime is 1845029. The next prime is 1845047. The reversal of 1845045 is 5405481.

It is not a de Polignac number, because 1845045 - 2⁴ = 1845029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845047) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 10579 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (104400).

2^1845045 is an apocalyptic number.

1845045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1845045 is a deficient number, since it is larger than the sum of its proper divisors (1495755).

1845045 is a wasteful number, since it uses less digits than its factorization.

1845045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1845045 is about 1358.3243353485. The cubic root of 1845045 is about 122.6504052890.

The spelling of 1845045 in words is "one million, eight hundred forty-five thousand, forty-five".