1105128126 has 24 divisors (see below), whose sum is σ = 2395055520. Its totient is φ = 368282016.

The previous prime is 1105128121. The next prime is 1105128139. The reversal of 1105128126 is 6218215011.

It is a self number, because there is not a number n which added to its sum of digits gives 1105128126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105128121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135595 + ... + 143513.

It is an arithmetic number, because the mean of its divisors is an integer number (99793980).

Almost surely, 2^1105128126 is an apocalyptic number.

1105128126 is an abundant number, since it is smaller than the sum of its proper divisors (1289927394).

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

1105128126 is a wasteful number, since it uses less digits than its factorization.

1105128126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680 (or 15677 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1105128126 is about 33243.4674184267. The cubic root of 1105128126 is about 1033.8817692461.

The spelling of 1105128126 in words is "one billion, one hundred five million, one hundred twenty-eight thousand, one hundred twenty-six".