1122445 has 8 divisors (see below), whose sum is σ = 1393560. Its totient is φ = 866880.

The previous prime is 1122437. The next prime is 1122449. The reversal of 1122445 is 5442211.

It can be written as a sum of positive squares in 4 ways, for example, as 34596 + 1087849 = 186^2 + 1043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1122445 - 2³ = 1122437 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3726 + ... + 4015.

It is an arithmetic number, because the mean of its divisors is an integer number (174195).

2^1122445 is an apocalyptic number.

It is an amenable number.

1122445 is a deficient number, since it is larger than the sum of its proper divisors (271115).

1122445 is an equidigital number, since it uses as much as digits as its factorization.

1122445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775.

The product of its digits is 320, while the sum is 19.

The square root of 1122445 is about 1059.4550485981. The cubic root of 1122445 is about 103.9253964472.

Adding to 1122445 its reverse (5442211), we get a palindrome (6564656).

The spelling of 1122445 in words is "one million, one hundred twenty-two thousand, four hundred forty-five".