1125805184 has 48 divisors (see below), whose sum is σ = 2609003430. Its totient is φ = 482485248.

The previous prime is 1125805151. The next prime is 1125805193. The reversal of 1125805184 is 4815085211.

It can be written as a sum of positive squares in only one way, i.e., 994014784 + 131790400 = 31528^2 + 11480^2 .

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 5 ways as a sum of consecutive naturals, for example, 83477 + ... + 96020.

Almost surely, 2^1125805184 is an apocalyptic number.

1125805184 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1125805184 is an abundant number, since it is smaller than the sum of its proper divisors (1483198246).

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

1125805184 is an equidigital number, since it uses as much as digits as its factorization.

1125805184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179525 (or 179506 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 35.

The square root of 1125805184 is about 33553.0204899648. The cubic root of 1125805184 is about 1040.2899783108.

The spelling of 1125805184 in words is "one billion, one hundred twenty-five million, eight hundred five thousand, one hundred eighty-four".