1165626 has 72 divisors (see below), whose sum is σ = 3261024. Its totient is φ = 292320.

The previous prime is 1165583. The next prime is 1165643. The reversal of 1165626 is 6265611.

It is a happy number.

1165626 is a `hidden beast` number, since 1 + 1 + 656 + 2 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1165626.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40180 + ... + 40208.

It is an arithmetic number, because the mean of its divisors is an integer number (45292).

2^1165626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630512).

1165626 is an abundant number, since it is smaller than the sum of its proper divisors (2095398).

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

1165626 is a wasteful number, since it uses less digits than its factorization.

1165626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 52 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1165626 is about 1079.6416072012. The cubic root of 1165626 is about 105.2413495786.

The spelling of 1165626 in words is "one million, one hundred sixty-five thousand, six hundred twenty-six".