11133621 has 12 divisors (see below), whose sum is σ = 16174080. Its totient is φ = 7379880.

The previous prime is 11133599. The next prime is 11133637. The reversal of 11133621 is 12633111.

11133621 is a `hidden beast` number, since 1 + 11 + 33 + 621 = 666.

It is not a de Polignac number, because 11133621 - 2¹⁷ = 11002549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11133594 and 11133603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123621) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1845 + ... + 5066.

It is an arithmetic number, because the mean of its divisors is an integer number (1347840).

Almost surely, 2^11133621 is an apocalyptic number.

It is an amenable number.

11133621 is a deficient number, since it is larger than the sum of its proper divisors (5040459).

11133621 is a wasteful number, since it uses less digits than its factorization.

11133621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096 (or 7093 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 11133621 is about 3336.7081083008. The cubic root of 11133621 is about 223.2949036622.

Adding to 11133621 its reverse (12633111), we get a palindrome (23766732).

The spelling of 11133621 in words is "eleven million, one hundred thirty-three thousand, six hundred twenty-one".