9135125216 has 144 divisors (see below), whose sum is σ = 21851563104. Its totient is φ = 3681911808.

The previous prime is 9135125203. The next prime is 9135125231. The reversal of 9135125216 is 6125215319.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13989146 + ... + 13989798.

It is an arithmetic number, because the mean of its divisors is an integer number (151746966).

Almost surely, 2^9135125216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9135125216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10925781552).

9135125216 is an abundant number, since it is smaller than the sum of its proper divisors (12716437888).

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

9135125216 is a wasteful number, since it uses less digits than its factorization.

9135125216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 854 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 9135125216 is about 95577.8489818640. The cubic root of 9135125216 is about 2090.4422204741.

The spelling of 9135125216 in words is "nine billion, one hundred thirty-five million, one hundred twenty-five thousand, two hundred sixteen".