11115140 has 24 divisors (see below), whose sum is σ = 23429952. Its totient is φ = 4429280.

The previous prime is 11115131. The next prime is 11115163. The reversal of 11115140 is 4151111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5327 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (976248).

Almost surely, 2^11115140 is an apocalyptic number.

11115140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11115140 is an abundant number, since it is smaller than the sum of its proper divisors (12314812).

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

11115140 is a wasteful number, since it uses less digits than its factorization.

11115140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 11115140 is about 3333.9376118938. The cubic root of 11115140 is about 223.1712841446.

Adding to 11115140 its reverse (4151111), we get a palindrome (15266251).

It can be divided in two parts, 111 and 15140, that added together give a palindrome (15251).

The spelling of 11115140 in words is "eleven million, one hundred fifteen thousand, one hundred forty".