1045012200 has 48 divisors (see below), whose sum is σ = 3239539680. Its totient is φ = 278669760.

The previous prime is 1045012193. The next prime is 1045012207. The reversal of 1045012200 is 22105401.

It is an interprime number because it is at equal distance from previous prime (1045012193) and next prime (1045012207).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1045012200.

It is not an unprimeable number, because it can be changed into a prime (1045012207) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 870244 + ... + 871443.

It is an arithmetic number, because the mean of its divisors is an integer number (67490410).

Almost surely, 2^1045012200 is an apocalyptic number.

1045012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045012200 is an abundant number, since it is smaller than the sum of its proper divisors (2194527480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045012200 is a wasteful number, since it uses less digits than its factorization.

1045012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741706 (or 1741697 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1045012200 is about 32326.6484498471. The cubic root of 1045012200 is about 1014.7844106812.

Adding to 1045012200 its reverse (22105401), we get a palindrome (1067117601).

The spelling of 1045012200 in words is "one billion, forty-five million, twelve thousand, two hundred".