1155166 has 8 divisors (see below), whose sum is σ = 1769760. Its totient is φ = 565248.

The previous prime is 1155151. The next prime is 1155169. The reversal of 1155166 is 6615511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6051 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (221220).

2^1155166 is an apocalyptic number.

1155166 is a deficient number, since it is larger than the sum of its proper divisors (614594).

1155166 is a wasteful number, since it uses less digits than its factorization.

1155166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12338.

The product of its digits is 900, while the sum is 25.

The square root of 1155166 is about 1074.7864904250. The cubic root of 1155166 is about 104.9256011134.

The spelling of 1155166 in words is "one million, one hundred fifty-five thousand, one hundred sixty-six".