9099138 has 16 divisors (see below), whose sum is σ = 19156320. Its totient is φ = 2873376.

The previous prime is 9099137. The next prime is 9099161. The reversal of 9099138 is 8319909.

It is a junction number, because it is equal to n+sod(n) for n = 9099096 and 9099105.

It is not an unprimeable number, because it can be changed into a prime (9099133) 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 7 ways as a sum of consecutive naturals, for example, 39795 + ... + 40022.

It is an arithmetic number, because the mean of its divisors is an integer number (1197270).

Almost surely, 2^9099138 is an apocalyptic number.

9099138 is an abundant number, since it is smaller than the sum of its proper divisors (10057182).

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

9099138 is a wasteful number, since it uses less digits than its factorization.

9099138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79841.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 9099138 is about 3016.4777473073. The cubic root of 9099138 is about 208.7693555385.

The spelling of 9099138 in words is "nine million, ninety-nine thousand, one hundred thirty-eight".