1149823 has 8 divisors (see below), whose sum is σ = 1228400. Its totient is φ = 1073088.

The previous prime is 1149817. The next prime is 1149857. The reversal of 1149823 is 3289411.

It is a happy number.

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 1149823 - 2¹³ = 1141631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1149791 and 1149800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149803) 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, 973 + ... + 1801.

It is an arithmetic number, because the mean of its divisors is an integer number (153550).

2^1149823 is an apocalyptic number.

1149823 is a deficient number, since it is larger than the sum of its proper divisors (78577).

1149823 is an equidigital number, since it uses as much as digits as its factorization.

1149823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its digits is 1728, while the sum is 28.

The square root of 1149823 is about 1072.2979996251. The cubic root of 1149823 is about 104.7635799385.

The spelling of 1149823 in words is "one million, one hundred forty-nine thousand, eight hundred twenty-three".