1123005554 has 16 divisors (see below), whose sum is σ = 1838189376. Its totient is φ = 510306000.

The previous prime is 1123005551. The next prime is 1123005563. The reversal of 1123005554 is 4555003211.

It is a super-2 number, since 2×1123005554² = 2522282948629693832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123005551) 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 7 ways as a sum of consecutive naturals, for example, 107219 + ... + 117225.

It is an arithmetic number, because the mean of its divisors is an integer number (114886836).

Almost surely, 2^1123005554 is an apocalyptic number.

1123005554 is a deficient number, since it is larger than the sum of its proper divisors (715183822).

1123005554 is a wasteful number, since it uses less digits than its factorization.

1123005554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15121.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1123005554 is about 33511.2750279663. The cubic root of 1123005554 is about 1039.4269383572.

Adding to 1123005554 its reverse (4555003211), we get a palindrome (5678008765).

The spelling of 1123005554 in words is "one billion, one hundred twenty-three million, five thousand, five hundred fifty-four".