1123553542 has 16 divisors (see below), whose sum is σ = 1761613920. Its totient is φ = 536432512.

The previous prime is 1123553513. The next prime is 1123553549. The reversal of 1123553542 is 2453553211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123553549) 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 7 ways as a sum of consecutive naturals, for example, 6684 + ... + 47872.

It is an arithmetic number, because the mean of its divisors is an integer number (110100870).

Almost surely, 2^1123553542 is an apocalyptic number.

1123553542 is a deficient number, since it is larger than the sum of its proper divisors (638060378).

1123553542 is a wasteful number, since it uses less digits than its factorization.

1123553542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41807.

The product of its digits is 18000, while the sum is 31.

The square root of 1123553542 is about 33519.4502043217. The cubic root of 1123553542 is about 1039.5959790370.

The spelling of 1123553542 in words is "one billion, one hundred twenty-three million, five hundred fifty-three thousand, five hundred forty-two".