1129085 has 8 divisors (see below), whose sum is σ = 1361976. Its totient is φ = 898560.

The previous prime is 1129043. The next prime is 1129103. The reversal of 1129085 is 5809211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34969 + 1094116 = 187^2 + 1046^2 .

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

It is not a de Polignac number, because 1129085 - 2¹⁸ = 866941 is a prime.

It is a Duffinian number.

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, 737 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (170247).

2^1129085 is an apocalyptic number.

It is an amenable number.

1129085 is a deficient number, since it is larger than the sum of its proper divisors (232891).

1129085 is an equidigital number, since it uses as much as digits as its factorization.

1129085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183.

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

The square root of 1129085 is about 1062.5841143175. The cubic root of 1129085 is about 104.1299226848.

The spelling of 1129085 in words is "one million, one hundred twenty-nine thousand, eighty-five".