1105128742 has 16 divisors (see below), whose sum is σ = 1678093200. Its totient is φ = 545794848.

The previous prime is 1105128733. The next prime is 1105128743. The reversal of 1105128742 is 2478215011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105128743) 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, 67288 + ... + 82084.

It is an arithmetic number, because the mean of its divisors is an integer number (104880825).

Almost surely, 2^1105128742 is an apocalyptic number.

1105128742 is a deficient number, since it is larger than the sum of its proper divisors (572964458).

1105128742 is a wasteful number, since it uses less digits than its factorization.

1105128742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15255.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1105128742 is about 33243.4766834036. The cubic root of 1105128742 is about 1033.8819613418.

It can be divided in two parts, 11051 and 28742, that added together give a palindrome (39793).

The spelling of 1105128742 in words is "one billion, one hundred five million, one hundred twenty-eight thousand, seven hundred forty-two".