1132121 has 4 divisors (see below), whose sum is σ = 1136052. Its totient is φ = 1128192.

The previous prime is 1132091. The next prime is 1132123. The reversal of 1132121 is 1212311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1212311 = 73 ⋅16607.

It can be written as a sum of positive squares in 2 ways, for example, as 6400 + 1125721 = 80^2 + 1061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1132123) 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, 1496 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (284013).

2^1132121 is an apocalyptic number.

It is an amenable number.

1132121 is a deficient number, since it is larger than the sum of its proper divisors (3931).

1132121 is an equidigital number, since it uses as much as digits as its factorization.

1132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930.

The product of its digits is 12, while the sum is 11.

The square root of 1132121 is about 1064.0117480554. The cubic root of 1132121 is about 104.2231709087.

Adding to 1132121 its reverse (1212311), we get a palindrome (2344432).

The spelling of 1132121 in words is "one million, one hundred thirty-two thousand, one hundred twenty-one".