1149843 has 4 divisors (see below), whose sum is σ = 1533128. Its totient is φ = 766560.

The previous prime is 1149817. The next prime is 1149857. The reversal of 1149843 is 3489411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3489411 = 3 ⋅1163137.

It is not a de Polignac number, because 1149843 - 2⁶ = 1149779 is a prime.

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 1149843.

It is not an unprimeable number, because it can be changed into a prime (1149803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191638 + ... + 191643.

It is an arithmetic number, because the mean of its divisors is an integer number (383282).

2^1149843 is an apocalyptic number.

1149843 is a deficient number, since it is larger than the sum of its proper divisors (383285).

1149843 is an equidigital number, since it uses as much as digits as its factorization.

1149843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383284.

The product of its digits is 3456, while the sum is 30.

The square root of 1149843 is about 1072.3073253503. The cubic root of 1149843 is about 104.7641873535.

The spelling of 1149843 in words is "one million, one hundred forty-nine thousand, eight hundred forty-three".