9122128606139 has 4 divisors (see below), whose sum is σ = 9122361751056. Its totient is φ = 9121895461224.

The previous prime is 9122128606091. The next prime is 9122128606153. The reversal of 9122128606139 is 9316068212219.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9122128606139 - 2³² = 9117833638843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9122128606189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116513759 + ... + 116592024.

It is an arithmetic number, because the mean of its divisors is an integer number (2280590437764).

Almost surely, 2^{9122128606139} is an apocalyptic number.

9122128606139 is a deficient number, since it is larger than the sum of its proper divisors (233144917).

9122128606139 is a wasteful number, since it uses less digits than its factorization.

9122128606139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233144916.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 9122128606139 in words is "nine trillion, one hundred twenty-two billion, one hundred twenty-eight million, six hundred six thousand, one hundred thirty-nine".