1128193524 has 18 divisors (see below), whose sum is σ = 2851822610. Its totient is φ = 376064496.

The previous prime is 1128193523. The next prime is 1128193531. The reversal of 1128193524 is 4253918211.

1128193524 is a `hidden beast` number, since 1 + 128 + 1 + 9 + 3 + 524 = 666.

It can be written as a sum of positive squares in only one way, i.e., 820822500 + 307371024 = 28650^2 + 17532^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 31338709 = 1128193524 / (1 + 1 + 2 + 8 + 1 + 9 + 3 + 5 + 2 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128193523) 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 5 ways as a sum of consecutive naturals, for example, 15669319 + ... + 15669390.

Almost surely, 2^1128193524 is an apocalyptic number.

It is an amenable number.

1128193524 is an abundant number, since it is smaller than the sum of its proper divisors (1723629086).

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

1128193524 is a wasteful number, since it uses less digits than its factorization.

1128193524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31338719 (or 31338714 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1128193524 is about 33588.5921705570. The cubic root of 1128193524 is about 1041.0250999548.

The spelling of 1128193524 in words is "one billion, one hundred twenty-eight million, one hundred ninety-three thousand, five hundred twenty-four".