1145043303 has 32 divisors (see below), whose sum is σ = 1627914240. Its totient is φ = 713875680.

The previous prime is 1145043287. The next prime is 1145043343. The reversal of 1145043303 is 3033405411.

It is a happy number.

It is not a de Polignac number, because 1145043303 - 2⁴ = 1145043287 is a prime.

It is a super-2 number, since 2×1145043303² = 2622248331490299618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145043343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2656498 + ... + 2656928.

It is an arithmetic number, because the mean of its divisors is an integer number (50872320).

Almost surely, 2^1145043303 is an apocalyptic number.

1145043303 is a deficient number, since it is larger than the sum of its proper divisors (482870937).

1145043303 is a wasteful number, since it uses less digits than its factorization.

1145043303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1145043303 is about 33838.4884857465. The cubic root of 1145043303 is about 1046.1821448808.

Adding to 1145043303 its reverse (3033405411), we get a palindrome (4178448714).

The spelling of 1145043303 in words is "one billion, one hundred forty-five million, forty-three thousand, three hundred three".