10911138 has 32 divisors (see below), whose sum is σ = 25297920. Its totient is φ = 3072720.

The previous prime is 10911119. The next prime is 10911139. The reversal of 10911138 is 83111901.

It is not an unprimeable number, because it can be changed into a prime (10911139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (790560).

Almost surely, 2^10911138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10911138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12648960).

10911138 is an abundant number, since it is smaller than the sum of its proper divisors (14386782).

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

10911138 is a wasteful number, since it uses less digits than its factorization.

10911138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 10911138 is about 3303.2011746183. The cubic root of 10911138 is about 221.7975184855.

The spelling of 10911138 in words is "ten million, nine hundred eleven thousand, one hundred thirty-eight".