1166523 has 16 divisors (see below), whose sum is σ = 1671840. Its totient is φ = 720896.

The previous prime is 1166507. The next prime is 1166527. The reversal of 1166523 is 3256611.

It is a cyclic number.

It is not a de Polignac number, because 1166523 - 2⁴ = 1166507 is a prime.

1166523 is a lucky number.

It is a zygodrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1166493 and 1166502.

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 15 ways as a sum of consecutive naturals, for example, 4411 + ... + 4667.

It is an arithmetic number, because the mean of its divisors is an integer number (104490).

2^1166523 is an apocalyptic number.

1166523 is a deficient number, since it is larger than the sum of its proper divisors (505317).

1166523 is a wasteful number, since it uses less digits than its factorization.

1166523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 1080, while the sum is 24.

The square root of 1166523 is about 1080.0569429433. The cubic root of 1166523 is about 105.2683385915.

The spelling of 1166523 in words is "one million, one hundred sixty-six thousand, five hundred twenty-three".