1089125 has 8 divisors (see below), whose sum is σ = 1359384. Its totient is φ = 871200.

The previous prime is 1089113. The next prime is 1089133. The reversal of 1089125 is 5219801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9604 + 1079521 = 98^2 + 1039^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1089125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1089094 and 1089103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4232 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (169923).

2^1089125 is an apocalyptic number.

It is an amenable number.

1089125 is a deficient number, since it is larger than the sum of its proper divisors (270259).

1089125 is an frugal number, since it uses more digits than its factorization.

1089125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8728 (or 8718 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1089125 is about 1043.6115177594. The cubic root of 1089125 is about 102.8867010692.

The spelling of 1089125 in words is "one million, eighty-nine thousand, one hundred twenty-five".