1121104 has 20 divisors (see below), whose sum is σ = 2226420. Its totient is φ = 546560.

The previous prime is 1121101. The next prime is 1121143. The reversal of 1121104 is 4011211.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 1000000 = 348^2 + 1000^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121101) 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, 199 + ... + 1510.

It is an arithmetic number, because the mean of its divisors is an integer number (111321).

2^1121104 is an apocalyptic number.

It is an amenable number.

1121104 is a deficient number, since it is larger than the sum of its proper divisors (1105316).

1121104 is a wasteful number, since it uses less digits than its factorization.

1121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1121104 is about 1058.8219869270. The cubic root of 1121104 is about 103.8839929357.

Adding to 1121104 its reverse (4011211), we get a palindrome (5132315).

It can be divided in two parts, 1121 and 104, that added together give a triangular number (1225 = T₄₉).

The spelling of 1121104 in words is "one million, one hundred twenty-one thousand, one hundred four".