1119989 has 8 divisors (see below), whose sum is σ = 1219512. Its totient is φ = 1022400.

The previous prime is 1119959. The next prime is 1120001. The reversal of 1119989 is 9899111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52900 + 1067089 = 230^2 + 1033^2 .

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 1119989 - 2⁸ = 1119733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119949) 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, 887 + ... + 1739.

It is an arithmetic number, because the mean of its divisors is an integer number (152439).

2^1119989 is an apocalyptic number.

It is an amenable number.

1119989 is a deficient number, since it is larger than the sum of its proper divisors (99523).

1119989 is a wasteful number, since it uses less digits than its factorization.

1119989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its digits is 5832, while the sum is 38.

The square root of 1119989 is about 1058.2953274016. The cubic root of 1119989 is about 103.8495420512.

The spelling of 1119989 in words is "one million, one hundred nineteen thousand, nine hundred eighty-nine".