9125239689 has 6 divisors (see below), whose sum is σ = 13180901786. Its totient is φ = 6083493120.

The previous prime is 9125239681. The next prime is 9125239691. The reversal of 9125239689 is 9869325219.

It is a happy number.

9125239689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9123497289 + 1742400 = 95517^2 + 1320^2 .

It is not a de Polignac number, because 9125239689 - 2³ = 9125239681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9125239681) 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 5 ways as a sum of consecutive naturals, for example, 506957752 + ... + 506957769.

Almost surely, 2^9125239689 is an apocalyptic number.

It is an amenable number.

9125239689 is a deficient number, since it is larger than the sum of its proper divisors (4055662097).

9125239689 is a wasteful number, since it uses less digits than its factorization.

9125239689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013915527 (or 1013915524 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 9125239689 is about 95526.1204540413. The cubic root of 9125239689 is about 2089.6878946812.

The spelling of 9125239689 in words is "nine billion, one hundred twenty-five million, two hundred thirty-nine thousand, six hundred eighty-nine".