1149943 has 2 divisors, whose sum is σ = 1149944. Its totient is φ = 1149942.

The previous prime is 1149919. The next prime is 1149971. The reversal of 1149943 is 3499411.

It is a weak prime.

It is an emirp because it is prime and its reverse (3499411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1149943 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149913) 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 as a sum of consecutive naturals, namely, 574971 + 574972.

It is an arithmetic number, because the mean of its divisors is an integer number (574972).

2^1149943 is an apocalyptic number.

1149943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149943 is an equidigital number, since it uses as much as digits as its factorization.

1149943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 1149943 is about 1072.3539527600. The cubic root of 1149943 is about 104.7672243232.

The spelling of 1149943 in words is "one million, one hundred forty-nine thousand, nine hundred forty-three".