1105543242 has 20 divisors (see below), whose sum is σ = 2477236146. Its totient is φ = 368514360.

The previous prime is 1105543237. The next prime is 1105543267. The reversal of 1105543242 is 2423455011.

1105543242 is a `hidden beast` number, since 110 + 5 + 543 + 2 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 794056041 + 311487201 = 28179^2 + 17649^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 3412009 + ... + 3412332.

Almost surely, 2^1105543242 is an apocalyptic number.

1105543242 is an abundant number, since it is smaller than the sum of its proper divisors (1371692904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105543242 is an equidigital number, since it uses as much as digits as its factorization.

1105543242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824355 (or 6824346 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1105543242 is about 33249.7104047539. The cubic root of 1105543242 is about 1034.0112043551.

Adding to 1105543242 its reverse (2423455011), we get a palindrome (3528998253).

The spelling of 1105543242 in words is "one billion, one hundred five million, five hundred forty-three thousand, two hundred forty-two".