1189748125 has 10 divisors (see below), whose sum is σ = 1486710038. Its totient is φ = 951798000.

The previous prime is 1189748093. The next prime is 1189748129. The reversal of 1189748125 is 5218479811.

It can be written as a sum of positive squares in 5 ways, for example, as 785456676 + 404291449 = 28026^2 + 20107^2 .

It is not a de Polignac number, because 1189748125 - 2⁵ = 1189748093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189748129) 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 9 ways as a sum of consecutive naturals, for example, 951174 + ... + 952423.

Almost surely, 2^1189748125 is an apocalyptic number.

It is an amenable number.

1189748125 is a deficient number, since it is larger than the sum of its proper divisors (296961913).

1189748125 is an frugal number, since it uses more digits than its factorization.

1189748125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903617 (or 1903602 counting only the distinct ones).

The product of its digits is 161280, while the sum is 46.

The square root of 1189748125 is about 34492.7256823812. The cubic root of 1189748125 is about 1059.6237317064.

The spelling of 1189748125 in words is "one billion, one hundred eighty-nine million, seven hundred forty-eight thousand, one hundred twenty-five".