1121441445 has 24 divisors (see below), whose sum is σ = 1944633600. Its totient is φ = 597855456.

The previous prime is 1121441441. The next prime is 1121441483. The reversal of 1121441445 is 5441441211.

It is a happy number.

1121441445 is a `hidden beast` number, since 1 + 1 + 214 + 4 + 1 + 445 = 666.

It is not a de Polignac number, because 1121441445 - 2² = 1121441441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121441441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173176 + ... + 179534.

It is an arithmetic number, because the mean of its divisors is an integer number (81026400).

Almost surely, 2^1121441445 is an apocalyptic number.

1121441445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121441445 is a deficient number, since it is larger than the sum of its proper divisors (823192155).

1121441445 is a wasteful number, since it uses less digits than its factorization.

1121441445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10289 (or 10286 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1121441445 is about 33487.9298404664. The cubic root of 1121441445 is about 1038.9441469184.

Adding to 1121441445 its reverse (5441441211), we get a palindrome (6562882656).

The spelling of 1121441445 in words is "one billion, one hundred twenty-one million, four hundred forty-one thousand, four hundred forty-five".