1045023445 has 4 divisors (see below), whose sum is σ = 1254028140. Its totient is φ = 836018752.

The previous prime is 1045023431. The next prime is 1045023479. The reversal of 1045023445 is 5443205401.

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 597362481 + 447660964 = 24441^2 + 21158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045023445 - 2¹⁵ = 1044990677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104502340 + ... + 104502349.

It is an arithmetic number, because the mean of its divisors is an integer number (313507035).

Almost surely, 2^1045023445 is an apocalyptic number.

It is an amenable number.

1045023445 is a deficient number, since it is larger than the sum of its proper divisors (209004695).

1045023445 is an equidigital number, since it uses as much as digits as its factorization.

1045023445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209004694.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1045023445 is about 32326.8223770911. The cubic root of 1045023445 is about 1014.7880505781.

Adding to 1045023445 its reverse (5443205401), we get a palindrome (6488228846).

The spelling of 1045023445 in words is "one billion, forty-five million, twenty-three thousand, four hundred forty-five".