1121983 has 8 divisors (see below), whose sum is σ = 1226880. Its totient is φ = 1021440.

The previous prime is 1121947. The next prime is 1121987. The reversal of 1121983 is 3891211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121983 is a prime.

It is a Duffinian number.

1121983 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121987) 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, 538 + ... + 1591.

It is an arithmetic number, because the mean of its divisors is an integer number (153360).

2^1121983 is an apocalyptic number.

1121983 is a deficient number, since it is larger than the sum of its proper divisors (104897).

1121983 is a wasteful number, since it uses less digits than its factorization.

1121983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

The product of its digits is 432, while the sum is 25.

The square root of 1121983 is about 1059.2369895354. The cubic root of 1121983 is about 103.9111358756.

The spelling of 1121983 in words is "one million, one hundred twenty-one thousand, nine hundred eighty-three".