1145303203 has 8 divisors (see below), whose sum is σ = 1250942400. Its totient is φ = 1039917480.

The previous prime is 1145303197. The next prime is 1145303213. The reversal of 1145303203 is 3023035411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145303203 - 2⁵ = 1145303171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145303213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53853 + ... + 72046.

It is an arithmetic number, because the mean of its divisors is an integer number (156367800).

Almost surely, 2^1145303203 is an apocalyptic number.

1145303203 is a deficient number, since it is larger than the sum of its proper divisors (105639197).

1145303203 is a wasteful number, since it uses less digits than its factorization.

1145303203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126737.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1145303203 is about 33842.3285694114. The cubic root of 1145303203 is about 1046.2612924465.

Adding to 1145303203 its reverse (3023035411), we get a palindrome (4168338614).

The spelling of 1145303203 in words is "one billion, one hundred forty-five million, three hundred three thousand, two hundred three".