1166051 has 4 divisors (see below), whose sum is σ = 1168272. Its totient is φ = 1163832.

The previous prime is 1166041. The next prime is 1166057. The reversal of 1166051 is 1506611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166051 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170 + ... + 1536.

It is an arithmetic number, because the mean of its divisors is an integer number (292068).

2^1166051 is an apocalyptic number.

1166051 is a deficient number, since it is larger than the sum of its proper divisors (2221).

1166051 is an equidigital number, since it uses as much as digits as its factorization.

1166051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1166051 is about 1079.8384138379. The cubic root of 1166051 is about 105.2541387404.

It can be divided in two parts, 11660 and 51, that added together give a palindrome (11711).

The spelling of 1166051 in words is "one million, one hundred sixty-six thousand, fifty-one".