1166526 has 24 divisors (see below), whose sum is σ = 2547480. Its totient is φ = 385776.

The previous prime is 1166507. The next prime is 1166527. The reversal of 1166526 is 6256611.

It is a happy number.

1166526 is a `hidden beast` number, since 1 + 1 + 6 + 652 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1166526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3981 + ... + 4263.

It is an arithmetic number, because the mean of its divisors is an integer number (106145).

2^1166526 is an apocalyptic number.

1166526 is an abundant number, since it is smaller than the sum of its proper divisors (1380954).

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

1166526 is a wasteful number, since it uses less digits than its factorization.

1166526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 517 counting only the distinct ones).

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

The square root of 1166526 is about 1080.0583317581. The cubic root of 1166526 is about 105.2684288326.

It can be divided in two parts, 1166 and 526, that multiplied together give a palindrome (613316).

The spelling of 1166526 in words is "one million, one hundred sixty-six thousand, five hundred twenty-six".