1045345289 has 4 divisors (see below), whose sum is σ = 1045509840. Its totient is φ = 1045180740.

The previous prime is 1045345267. The next prime is 1045345297. The reversal of 1045345289 is 9825435401.

1045345289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9825435401 = 19 ⋅517128179.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045345289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045345219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72347 + ... + 85584.

It is an arithmetic number, because the mean of its divisors is an integer number (261377460).

Almost surely, 2^1045345289 is an apocalyptic number.

It is an amenable number.

1045345289 is a deficient number, since it is larger than the sum of its proper divisors (164551).

1045345289 is an equidigital number, since it uses as much as digits as its factorization.

1045345289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164550.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 1045345289 is about 32331.7999653592. The cubic root of 1045345289 is about 1014.8922172752.

The spelling of 1045345289 in words is "one billion, forty-five million, three hundred forty-five thousand, two hundred eighty-nine".