1113889 has 8 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 949200.

The previous prime is 1113887. The next prime is 1113899. The reversal of 1113889 is 9883111.

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

It is not a de Polignac number, because 1113889 - 2¹ = 1113887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1113889.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113883) 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, 1239 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2^1113889 is an apocalyptic number.

It is an amenable number.

1113889 is a deficient number, since it is larger than the sum of its proper divisors (166559).

1113889 is an equidigital number, since it uses as much as digits as its factorization.

1113889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its digits is 1728, while the sum is 31.

The square root of 1113889 is about 1055.4093992380. The cubic root of 1113889 is about 103.6606604990.

It can be divided in two parts, 1113 and 889, that added together give a palindrome (2002).

The spelling of 1113889 in words is "one million, one hundred thirteen thousand, eight hundred eighty-nine".