1121166 has 24 divisors (see below), whose sum is σ = 2449200. Its totient is φ = 370656.

The previous prime is 1121147. The next prime is 1121173. The reversal of 1121166 is 6611211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3426 + ... + 3738.

It is an arithmetic number, because the mean of its divisors is an integer number (102050).

2^1121166 is an apocalyptic number.

1121166 is an abundant number, since it is smaller than the sum of its proper divisors (1328034).

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

1121166 is a wasteful number, since it uses less digits than its factorization.

1121166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 517 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1121166 is about 1058.8512643426. The cubic root of 1121166 is about 103.8859079198.

Adding to 1121166 its reverse (6611211), we get a palindrome (7732377).

The spelling of 1121166 in words is "one million, one hundred twenty-one thousand, one hundred sixty-six".