1045603 has 12 divisors (see below), whose sum is σ = 1185840. Its totient is φ = 919776.

The previous prime is 1045573. The next prime is 1045607. The reversal of 1045603 is 3065401.

It is not a de Polignac number, because 1045603 - 2⁵ = 1045571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3753 + ... + 4021.

It is an arithmetic number, because the mean of its divisors is an integer number (98820).

2^1045603 is an apocalyptic number.

1045603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1045603 is a deficient number, since it is larger than the sum of its proper divisors (140237).

1045603 is a wasteful number, since it uses less digits than its factorization.

1045603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1045603 is about 1022.5473094190. The cubic root of 1045603 is about 101.4975611538.

The spelling of 1045603 in words is "one million, forty-five thousand, six hundred three".