1049173045 has 4 divisors (see below), whose sum is σ = 1259007660. Its totient is φ = 839338432.

The previous prime is 1049173043. The next prime is 1049173051. The reversal of 1049173045 is 5403719401.

1049173045 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 an emirpimes, since its reverse is a distinct semiprime: 5403719401 = 1087 ⋅4971223.

It can be written as a sum of positive squares in 2 ways, for example, as 401521444 + 647651601 = 20038^2 + 25449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049173045 - 2¹ = 1049173043 is a prime.

It is a super-2 number, since 2×1049173045² = 2201528156709144050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1049173045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049173043) 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, 104917300 + ... + 104917309.

It is an arithmetic number, because the mean of its divisors is an integer number (314751915).

Almost surely, 2^1049173045 is an apocalyptic number.

It is an amenable number.

1049173045 is a deficient number, since it is larger than the sum of its proper divisors (209834615).

1049173045 is an equidigital number, since it uses as much as digits as its factorization.

1049173045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209834614.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1049173045 is about 32390.9407859667. The cubic root of 1049173045 is about 1016.1294568777.

The spelling of 1049173045 in words is "one billion, forty-nine million, one hundred seventy-three thousand, forty-five".