9138916 has 12 divisors (see below), whose sum is σ = 16023280. Its totient is φ = 4560840.

The previous prime is 9138863. The next prime is 9138917. The reversal of 9138916 is 6198319.

9138916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9138917) 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, 631 + ... + 4321.

Almost surely, 2^9138916 is an apocalyptic number.

It is an amenable number.

9138916 is a deficient number, since it is larger than the sum of its proper divisors (6884364).

9138916 is a wasteful number, since it uses less digits than its factorization.

9138916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314 (or 4312 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 9138916 is about 3023.0640085847. The cubic root of 9138916 is about 209.0731335980.

The spelling of 9138916 in words is "nine million, one hundred thirty-eight thousand, nine hundred sixteen".