1165956 has 48 divisors (see below), whose sum is σ = 3033408. Its totient is φ = 348480.

The previous prime is 1165951. The next prime is 1165991. The reversal of 1165956 is 6595611.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1165951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15936 + ... + 16008.

It is an arithmetic number, because the mean of its divisors is an integer number (63196).

2^1165956 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 1165956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516704).

1165956 is an abundant number, since it is smaller than the sum of its proper divisors (1867452).

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

1165956 is a wasteful number, since it uses less digits than its factorization.

1165956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 89 counting only the distinct ones).

The product of its digits is 8100, while the sum is 33.

The square root of 1165956 is about 1079.7944248791. The cubic root of 1165956 is about 105.2512802563.

The spelling of 1165956 in words is "one million, one hundred sixty-five thousand, nine hundred fifty-six".