1045945 has 4 divisors (see below), whose sum is σ = 1255140. Its totient is φ = 836752.

The previous prime is 1045907. The next prime is 1045963. The reversal of 1045945 is 5495401.

1045945 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266256 + 779689 = 516^2 + 883^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045945 - 2¹¹ = 1043897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104590 + ... + 104599.

It is an arithmetic number, because the mean of its divisors is an integer number (313785).

2^1045945 is an apocalyptic number.

It is an amenable number.

1045945 is a deficient number, since it is larger than the sum of its proper divisors (209195).

1045945 is an equidigital number, since it uses as much as digits as its factorization.

1045945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209194.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1045945 is about 1022.7145251731. The cubic root of 1045945 is about 101.5086260232.

The spelling of 1045945 in words is "one million, forty-five thousand, nine hundred forty-five".