1166223 has 8 divisors (see below), whose sum is σ = 1566000. Its totient is φ = 771968.

The previous prime is 1166219. The next prime is 1166227. The reversal of 1166223 is 3226611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1166219) and next prime (1166227).

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

It is a cyclic number.

It is not a de Polignac number, because 1166223 - 2² = 1166219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (195750).

2^1166223 is an apocalyptic number.

1166223 is a deficient number, since it is larger than the sum of its proper divisors (399777).

1166223 is a wasteful number, since it uses less digits than its factorization.

1166223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761.

The product of its digits is 432, while the sum is 21.

The square root of 1166223 is about 1079.9180524466. The cubic root of 1166223 is about 105.2593137061.

It can be divided in two parts, 116622 and 3, that multiplied together give a triangular number (349866 = T₈₃₆).

The spelling of 1166223 in words is "one million, one hundred sixty-six thousand, two hundred twenty-three".