1045863173 has 4 divisors (see below), whose sum is σ = 1049585388. Its totient is φ = 1042140960.

The previous prime is 1045863109. The next prime is 1045863197. The reversal of 1045863173 is 3713685401.

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 830419489 + 215443684 = 28817^2 + 14678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045863173 - 2⁶ = 1045863109 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 (1045863373) 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, 1860686 + ... + 1861247.

It is an arithmetic number, because the mean of its divisors is an integer number (262396347).

Almost surely, 2^1045863173 is an apocalyptic number.

It is an amenable number.

1045863173 is a deficient number, since it is larger than the sum of its proper divisors (3722215).

1045863173 is an equidigital number, since it uses as much as digits as its factorization.

1045863173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722214.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 1045863173 is about 32339.8078689407. The cubic root of 1045863173 is about 1015.0597885947.

The spelling of 1045863173 in words is "one billion, forty-five million, eight hundred sixty-three thousand, one hundred seventy-three".