11522140 has 24 divisors (see below), whose sum is σ = 27653472. Its totient is φ = 3950400.

The previous prime is 11522129. The next prime is 11522153. The reversal of 11522140 is 4122511.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 41011 + ... + 41290.

It is an arithmetic number, because the mean of its divisors is an integer number (1152228).

Almost surely, 2^11522140 is an apocalyptic number.

11522140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11522140 is an abundant number, since it is smaller than the sum of its proper divisors (16131332).

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

11522140 is a wasteful number, since it uses less digits than its factorization.

11522140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82317 (or 82315 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11522140 is about 3394.4277868295. The cubic root of 11522140 is about 225.8626309066.

Adding to 11522140 its reverse (4122511), we get a palindrome (15644651).

The spelling of 11522140 in words is "eleven million, five hundred twenty-two thousand, one hundred forty".