9312187136 has 72 divisors (see below), whose sum is σ = 21320179104. Its totient is φ = 3976519680.

The previous prime is 9312187133. The next prime is 9312187151. The reversal of 9312187136 is 6317812139.

It is a junction number, because it is equal to n+sod(n) for n = 9312187093 and 9312187102.

It is not an unprimeable number, because it can be changed into a prime (9312187133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494306 + ... + 512798.

Almost surely, 2^9312187136 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 9312187136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10660089552).

9312187136 is an abundant number, since it is smaller than the sum of its proper divisors (12007991968).

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

9312187136 is a wasteful number, since it uses less digits than its factorization.

9312187136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18797 (or 18783 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 9312187136 is about 96499.6742792430. The cubic root of 9312187136 is about 2103.8619136679.

The spelling of 9312187136 in words is "nine billion, three hundred twelve million, one hundred eighty-seven thousand, one hundred thirty-six".