9120550128 has 20 divisors (see below), whose sum is σ = 23561421288. Its totient is φ = 3040183360.

The previous prime is 9120550097. The next prime is 9120550151. The reversal of 9120550128 is 8210550219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95005683 + ... + 95005778.

Almost surely, 2^9120550128 is an apocalyptic number.

It is an amenable number.

9120550128 is an abundant number, since it is smaller than the sum of its proper divisors (14440871160).

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

9120550128 is a wasteful number, since it uses less digits than its factorization.

9120550128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190011472 (or 190011466 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 9120550128 is about 95501.5713378581. The cubic root of 9120550128 is about 2089.3298621475.

Subtracting from 9120550128 its reverse (8210550219), we obtain a palindrome (909999909).

The spelling of 9120550128 in words is "nine billion, one hundred twenty million, five hundred fifty thousand, one hundred twenty-eight".