1135823 has 8 divisors (see below), whose sum is σ = 1253616. Its totient is φ = 1022400.

The previous prime is 1135819. The next prime is 1135831. The reversal of 1135823 is 3285311.

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 1135823 - 2² = 1135819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135853) 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 7 ways as a sum of consecutive naturals, for example, 533 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (156702).

2^1135823 is an apocalyptic number.

1135823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1135823 is a deficient number, since it is larger than the sum of its proper divisors (117793).

1135823 is a wasteful number, since it uses less digits than its factorization.

1135823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185.

The product of its digits is 720, while the sum is 23.

The square root of 1135823 is about 1065.7499706779. The cubic root of 1135823 is about 104.3366494697.

The spelling of 1135823 in words is "one million, one hundred thirty-five thousand, eight hundred twenty-three".