1121441 has 4 divisors (see below), whose sum is σ = 1123584. Its totient is φ = 1119300.

The previous prime is 1121431. The next prime is 1121443. The reversal of 1121441 is 1441211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1441211 = 1091 ⋅1321.

It is a cyclic number.

It is not a de Polignac number, because 1121441 - 2⁶ = 1121377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121443) 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, 296 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (280896).

2^1121441 is an apocalyptic number.

It is an amenable number.

1121441 is a deficient number, since it is larger than the sum of its proper divisors (2143).

1121441 is an equidigital number, since it uses as much as digits as its factorization.

1121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its digits is 32, while the sum is 14.

The square root of 1121441 is about 1058.9811140903. The cubic root of 1121441 is about 103.8944009497.

Adding to 1121441 its reverse (1441211), we get a palindrome (2562652).

The spelling of 1121441 in words is "one million, one hundred twenty-one thousand, four hundred forty-one".