11131636 has 12 divisors (see below), whose sum is σ = 19518912. Its totient is φ = 5554808.

The previous prime is 11131613. The next prime is 11131639. The reversal of 11131636 is 63613111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220 + ... + 4723.

It is an arithmetic number, because the mean of its divisors is an integer number (1626576).

Almost surely, 2^11131636 is an apocalyptic number.

It is an amenable number.

11131636 is a deficient number, since it is larger than the sum of its proper divisors (8387276).

11131636 is a wasteful number, since it uses less digits than its factorization.

11131636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5510 (or 5508 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 11131636 is about 3336.4106461885. The cubic root of 11131636 is about 223.2816325461.

Adding to 11131636 its reverse (63613111), we get a palindrome (74744747).

The spelling of 11131636 in words is "eleven million, one hundred thirty-one thousand, six hundred thirty-six".