1045189 has 8 divisors (see below), whose sum is σ = 1128960. Its totient is φ = 964656.

The previous prime is 1045183. The next prime is 1045193. The reversal of 1045189 is 9815401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045189 - 2⁵ = 1045157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045183) 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 7 ways as a sum of consecutive naturals, for example, 117 + ... + 1450.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

2^1045189 is an apocalyptic number.

It is an amenable number.

1045189 is a deficient number, since it is larger than the sum of its proper divisors (83771).

1045189 is a wasteful number, since it uses less digits than its factorization.

1045189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1045189 is about 1022.3448537553. The cubic root of 1045189 is about 101.4841636095.

The spelling of 1045189 in words is "one million, forty-five thousand, one hundred eighty-nine".