1136889 has 32 divisors (see below), whose sum is σ = 1881600. Its totient is φ = 673920.

The previous prime is 1136869. The next prime is 1136897. The reversal of 1136889 is 9886311.

It is not a de Polignac number, because 1136889 - 2⁸ = 1136633 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1136809) 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 31 ways as a sum of consecutive naturals, for example, 14352 + ... + 14430.

It is an arithmetic number, because the mean of its divisors is an integer number (58800).

2^1136889 is an apocalyptic number.

It is an amenable number.

1136889 is a deficient number, since it is larger than the sum of its proper divisors (744711).

1136889 is a wasteful number, since it uses less digits than its factorization.

1136889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 136 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1136889 is about 1066.2499706917. The cubic root of 1136889 is about 104.3692801675.

It can be divided in two parts, 1136 and 889, that added together give a square (2025 = 45²).

The spelling of 1136889 in words is "one million, one hundred thirty-six thousand, eight hundred eighty-nine".