11145138 has 16 divisors (see below), whose sum is σ = 22324896. Its totient is φ = 3709280.

The previous prime is 11145137. The next prime is 11145143. The reversal of 11145138 is 83154111.

11145138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11145137) 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, 4870 + ... + 6782.

It is an arithmetic number, because the mean of its divisors is an integer number (1395306).

Almost surely, 2^11145138 is an apocalyptic number.

11145138 is an abundant number, since it is smaller than the sum of its proper divisors (11179758).

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

11145138 is a wasteful number, since it uses less digits than its factorization.

11145138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889.

The product of its digits is 480, while the sum is 24.

The square root of 11145138 is about 3338.4334649653. The cubic root of 11145138 is about 223.3718717683.

Adding to 11145138 its reverse (83154111), we get a palindrome (94299249).

The spelling of 11145138 in words is "eleven million, one hundred forty-five thousand, one hundred thirty-eight".