1149503 has 2 divisors, whose sum is σ = 1149504. Its totient is φ = 1149502.

The previous prime is 1149493. The next prime is 1149509. The reversal of 1149503 is 3059411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1149503 - 2⁴ = 1149487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149509) 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 as a sum of consecutive naturals, namely, 574751 + 574752.

It is an arithmetic number, because the mean of its divisors is an integer number (574752).

2^1149503 is an apocalyptic number.

1149503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149503 is an equidigital number, since it uses as much as digits as its factorization.

1149503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1149503 is about 1072.1487769895. The cubic root of 1149503 is about 104.7538603393.

The spelling of 1149503 in words is "one million, one hundred forty-nine thousand, five hundred three".