1145003043 has 24 divisors (see below), whose sum is σ = 1626165072. Its totient is φ = 716317888.

The previous prime is 1145003003. The next prime is 1145003047. The reversal of 1145003043 is 3403005411.

It is not a de Polignac number, because 1145003043 - 2¹² = 1144998947 is a prime.

It is a super-2 number, since 2×1145003043² = 2622063936958519698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145003047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77305 + ... + 90917.

It is an arithmetic number, because the mean of its divisors is an integer number (67756878).

Almost surely, 2^1145003043 is an apocalyptic number.

1145003043 is a deficient number, since it is larger than the sum of its proper divisors (481162029).

1145003043 is a wasteful number, since it uses less digits than its factorization.

1145003043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13715 (or 13692 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1145003043 is about 33837.8935957899. The cubic root of 1145003043 is about 1046.1698833979.

Adding to 1145003043 its reverse (3403005411), we get a palindrome (4548008454).

The spelling of 1145003043 in words is "one billion, one hundred forty-five million, three thousand, forty-three".