1123055 has 4 divisors (see below), whose sum is σ = 1347672. Its totient is φ = 898440.

The previous prime is 1123051. The next prime is 1123079. The reversal of 1123055 is 5503211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5503211 = 7 ⋅786173.

It is not a de Polignac number, because 1123055 - 2² = 1123051 is a prime.

It is a super-2 number, since 2×1123055² = 2522505066050, which contains 22 as substring.

It is a Duffinian 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 (1123051) 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, 112301 + ... + 112310.

It is an arithmetic number, because the mean of its divisors is an integer number (336918).

2^1123055 is an apocalyptic number.

1123055 is a deficient number, since it is larger than the sum of its proper divisors (224617).

1123055 is an equidigital number, since it uses as much as digits as its factorization.

1123055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224616.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1123055 is about 1059.7428933472. The cubic root of 1123055 is about 103.9442193476.

Adding to 1123055 its reverse (5503211), we get a palindrome (6626266).

The spelling of 1123055 in words is "one million, one hundred twenty-three thousand, fifty-five".