1105128 has 24 divisors (see below), whose sum is σ = 2993250. Its totient is φ = 368352.

The previous prime is 1105109. The next prime is 1105141. The reversal of 1105128 is 8215011.

It can be written as a sum of positive squares in only one way, i.e., 1004004 + 101124 = 1002^2 + 318^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1105128.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7603 + ... + 7746.

2^1105128 is an apocalyptic number.

1105128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1105128 is an abundant number, since it is smaller than the sum of its proper divisors (1888122).

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

1105128 is a wasteful number, since it uses less digits than its factorization.

1105128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15361 (or 15354 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1105128 is about 1051.2506837096. The cubic root of 1105128 is about 103.3881729954.

The spelling of 1105128 in words is "one million, one hundred five thousand, one hundred twenty-eight".