1145003225 has 12 divisors (see below), whose sum is σ = 1421494956. Its totient is φ = 914911680.

The previous prime is 1145003219. The next prime is 1145003239. The reversal of 1145003225 is 5223005411.

It can be written as a sum of positive squares in 6 ways, for example, as 338670409 + 806332816 = 18403^2 + 28396^2 .

It is not a de Polignac number, because 1145003225 - 2⁶ = 1145003161 is a prime.

It is a super-2 number, since 2×1145003225² = 2622064770520801250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145003225.

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 11 ways as a sum of consecutive naturals, for example, 5522 + ... + 48171.

It is an arithmetic number, because the mean of its divisors is an integer number (118457913).

Almost surely, 2^1145003225 is an apocalyptic number.

It is an amenable number.

1145003225 is a deficient number, since it is larger than the sum of its proper divisors (276491731).

1145003225 is an equidigital number, since it uses as much as digits as its factorization.

1145003225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54556 (or 54551 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1145003225 is about 33837.8962850825. The cubic root of 1145003225 is about 1046.1699388280.

Adding to 1145003225 its reverse (5223005411), we get a palindrome (6368008636).

The spelling of 1145003225 in words is "one billion, one hundred forty-five million, three thousand, two hundred twenty-five".