1135889 has 8 divisors (see below), whose sum is σ = 1215720. Its totient is φ = 1057536.

The previous prime is 1135879. The next prime is 1135891. The reversal of 1135889 is 9885311.

1135889 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 85264 + 1050625 = 292^2 + 1025^2 .

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

It is not a de Polignac number, because 1135889 - 2⁴ = 1135873 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1135819) 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, 1547 + ... + 2159.

It is an arithmetic number, because the mean of its divisors is an integer number (151965).

2^1135889 is an apocalyptic number.

It is an amenable number.

1135889 is a deficient number, since it is larger than the sum of its proper divisors (79831).

1135889 is a wasteful number, since it uses less digits than its factorization.

1135889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its digits is 8640, while the sum is 35.

The square root of 1135889 is about 1065.7809343388. The cubic root of 1135889 is about 104.3386703496.

The spelling of 1135889 in words is "one million, one hundred thirty-five thousand, eight hundred eighty-nine".