11305136 has 40 divisors (see below), whose sum is σ = 23502960. Its totient is φ = 5249024.

The previous prime is 11305127. The next prime is 11305139. The reversal of 11305136 is 63150311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305139) 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, 23975 + ... + 24441.

It is an arithmetic number, because the mean of its divisors is an integer number (587574).

Almost surely, 2^11305136 is an apocalyptic number.

11305136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11305136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11751480).

11305136 is an abundant number, since it is smaller than the sum of its proper divisors (12197824).

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

11305136 is a wasteful number, since it uses less digits than its factorization.

11305136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 11305136 is about 3362.3111099361. The cubic root of 11305136 is about 224.4356953605.

Adding to 11305136 its reverse (63150311), we get a palindrome (74455447).

The spelling of 11305136 in words is "eleven million, three hundred five thousand, one hundred thirty-six".