9138850 has 24 divisors (see below), whose sum is σ = 19427328. Its totient is φ = 3133200.

The previous prime is 9138847. The next prime is 9138851. The reversal of 9138850 is 588319.

It is not an unprimeable number, because it can be changed into a prime (9138851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12706 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (809472).

Almost surely, 2^9138850 is an apocalyptic number.

9138850 is an abundant number, since it is smaller than the sum of its proper divisors (10288478).

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

9138850 is a wasteful number, since it uses less digits than its factorization.

9138850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26130 (or 26125 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 9138850 is about 3023.0530924878. The cubic root of 9138850 is about 209.0726302976.

The spelling of 9138850 in words is "nine million, one hundred thirty-eight thousand, eight hundred fifty".