1120447 has 4 divisors (see below), whose sum is σ = 1132096. Its totient is φ = 1108800.

The previous prime is 1120429. The next prime is 1120459. The reversal of 1120447 is 7440211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1120447 - 2⁷ = 1120319 is a prime.

It is a Duffinian number.

1120447 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5679 + ... + 5872.

It is an arithmetic number, because the mean of its divisors is an integer number (283024).

2^1120447 is an apocalyptic number.

1120447 is a deficient number, since it is larger than the sum of its proper divisors (11649).

1120447 is an equidigital number, since it uses as much as digits as its factorization.

1120447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11648.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1120447 is about 1058.5116910077. The cubic root of 1120447 is about 103.8636959427.

Adding to 1120447 its reverse (7440211), we get a palindrome (8560658).

The spelling of 1120447 in words is "one million, one hundred twenty thousand, four hundred forty-seven".