1140823 has 8 divisors (see below), whose sum is σ = 1201248. Its totient is φ = 1081344.

The previous prime is 1140803. The next prime is 1140847. The reversal of 1140823 is 3280411.

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 1140823 - 2⁹ = 1140311 is a prime.

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 1140823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4311 + ... + 4567.

It is an arithmetic number, because the mean of its divisors is an integer number (150156).

2^1140823 is an apocalyptic number.

1140823 is a deficient number, since it is larger than the sum of its proper divisors (60425).

1140823 is a wasteful number, since it uses less digits than its factorization.

1140823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1140823 is about 1068.0931607308. The cubic root of 1140823 is about 104.4895252888.

The spelling of 1140823 in words is "one million, one hundred forty thousand, eight hundred twenty-three".