1165736 has 32 divisors (see below), whose sum is σ = 2570400. Its totient is φ = 488640.

The previous prime is 1165729. The next prime is 1165739. The reversal of 1165736 is 6375611.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1165699 and 1165708.

It is not an unprimeable number, because it can be changed into a prime (1165739) 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, 635 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (80325).

2^1165736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285200).

1165736 is an abundant number, since it is smaller than the sum of its proper divisors (1404664).

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

1165736 is a wasteful number, since it uses less digits than its factorization.

1165736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1045 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 1165736 is about 1079.6925488305. The cubic root of 1165736 is about 105.2446600127.

The spelling of 1165736 in words is "one million, one hundred sixty-five thousand, seven hundred thirty-six".