1089126 has 36 divisors (see below), whose sum is σ = 2479932. Its totient is φ = 358668.

The previous prime is 1089113. The next prime is 1089133. The reversal of 1089126 is 6219801.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1089126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13081 + ... + 13163.

It is an arithmetic number, because the mean of its divisors is an integer number (68887).

2^1089126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239966).

1089126 is an abundant number, since it is smaller than the sum of its proper divisors (1390806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089126 is an frugal number, since it uses more digits than its factorization.

1089126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1089126 is about 1043.6119968647. The cubic root of 1089126 is about 102.8867325583.

The spelling of 1089126 in words is "one million, eighty-nine thousand, one hundred twenty-six".