1121156 has 12 divisors (see below), whose sum is σ = 1978368. Its totient is φ = 555912.

The previous prime is 1121147. The next prime is 1121173. The reversal of 1121156 is 6511211.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (164864).

2^1121156 is an apocalyptic number.

It is an amenable number.

1121156 is a deficient number, since it is larger than the sum of its proper divisors (857212).

1121156 is a wasteful number, since it uses less digits than its factorization.

1121156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2336 counting only the distinct ones).

The product of its digits is 60, while the sum is 17.

The square root of 1121156 is about 1058.8465422336. The cubic root of 1121156 is about 103.8855990561.

Adding to 1121156 its reverse (6511211), we get a palindrome (7632367).

The spelling of 1121156 in words is "one million, one hundred twenty-one thousand, one hundred fifty-six".