1121329 has 4 divisors (see below), whose sum is σ = 1223280. Its totient is φ = 1019380.

The previous prime is 1121317. The next prime is 1121333. The reversal of 1121329 is 9231211.

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.

It is a cyclic number.

It is not a de Polignac number, because 1121329 - 2⁵ = 1121297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121369) 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, 50959 + ... + 50980.

It is an arithmetic number, because the mean of its divisors is an integer number (305820).

2^1121329 is an apocalyptic number.

It is an amenable number.

1121329 is a deficient number, since it is larger than the sum of its proper divisors (101951).

1121329 is a wasteful number, since it uses less digits than its factorization.

1121329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101950.

The product of its digits is 108, while the sum is 19.

The square root of 1121329 is about 1058.9282317513. The cubic root of 1121329 is about 103.8909421378.

It can be divided in two parts, 112 and 1329, that added together give a palindrome (1441).

The spelling of 1121329 in words is "one million, one hundred twenty-one thousand, three hundred twenty-nine".