11148138 has 16 divisors (see below), whose sum is σ = 24773760. Its totient is φ = 3716028.

The previous prime is 11148133. The next prime is 11148139. The reversal of 11148138 is 83184111.

11148138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11148131) 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, 103170 + ... + 103277.

It is an arithmetic number, because the mean of its divisors is an integer number (1548360).

Almost surely, 2^11148138 is an apocalyptic number.

11148138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11148138 is an abundant number, since it is smaller than the sum of its proper divisors (13625622).

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

11148138 is a wasteful number, since it uses less digits than its factorization.

11148138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206458 (or 206452 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 11148138 is about 3338.8827472674. The cubic root of 11148138 is about 223.3919120614.

The spelling of 11148138 in words is "eleven million, one hundred forty-eight thousand, one hundred thirty-eight".