1172166 has 16 divisors (see below), whose sum is σ = 2355264. Its totient is φ = 388904.

The previous prime is 1172147. The next prime is 1172179. The reversal of 1172166 is 6612711.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (147204).

2^1172166 is an apocalyptic number.

1172166 is an abundant number, since it is smaller than the sum of its proper divisors (1183098).

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

1172166 is a wasteful number, since it uses less digits than its factorization.

1172166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its digits is 504, while the sum is 24.

The square root of 1172166 is about 1082.6661535303. Note that the first 3 decimals coincide. The cubic root of 1172166 is about 105.4378091571.

Adding to 1172166 its reverse (6612711), we get a palindrome (7784877).

The spelling of 1172166 in words is "one million, one hundred seventy-two thousand, one hundred sixty-six".