1149303 has 4 divisors (see below), whose sum is σ = 1532408. Its totient is φ = 766200.

The previous prime is 1149283. The next prime is 1149307. The reversal of 1149303 is 3039411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1149303 - 2¹⁴ = 1132919 is a prime.

It is a super-3 number, since 3×1149303³ = 4554333984607323381, which contains 333 as substring.

It is a D-number.

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 1149303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191548 + ... + 191553.

It is an arithmetic number, because the mean of its divisors is an integer number (383102).

2^1149303 is an apocalyptic number.

1149303 is a deficient number, since it is larger than the sum of its proper divisors (383105).

1149303 is an equidigital number, since it uses as much as digits as its factorization.

1149303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383104.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1149303 is about 1072.0555022945. The cubic root of 1149303 is about 104.7477846737.

The spelling of 1149303 in words is "one million, one hundred forty-nine thousand, three hundred three".