1145003403 has 8 divisors (see below), whose sum is σ = 1607022400. Its totient is φ = 723160008.

The previous prime is 1145003381. The next prime is 1145003459. The reversal of 1145003403 is 3043005411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1145003403 - 2⁶ = 1145003339 is a prime.

It is a super-2 number, since 2×1145003403² = 2622065585763160818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145003403.

It is not an unprimeable number, because it can be changed into a prime (1145003473) 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 7 ways as a sum of consecutive naturals, for example, 10043833 + ... + 10043946.

It is an arithmetic number, because the mean of its divisors is an integer number (200877800).

Almost surely, 2^1145003403 is an apocalyptic number.

1145003403 is a deficient number, since it is larger than the sum of its proper divisors (462018997).

1145003403 is a wasteful number, since it uses less digits than its factorization.

1145003403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20087801.

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

The square root of 1145003403 is about 33837.8989152695. The cubic root of 1145003403 is about 1046.1699930398.

Adding to 1145003403 its reverse (3043005411), we get a palindrome (4188008814).

The spelling of 1145003403 in words is "one billion, one hundred forty-five million, three thousand, four hundred three".