11553128 has 16 divisors (see below), whose sum is σ = 21862500. Its totient is φ = 5723136.

The previous prime is 11553127. The next prime is 11553133. The reversal of 11553128 is 82135511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11546404 + 6724 = 3398^2 + 82^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11553097 and 11553106.

It is not an unprimeable number, because it can be changed into a prime (11553127) 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, 5753 + ... + 7496.

Almost surely, 2^11553128 is an apocalyptic number.

It is an amenable number.

11553128 is a deficient number, since it is larger than the sum of its proper divisors (10309372).

11553128 is a wasteful number, since it uses less digits than its factorization.

11553128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13364 (or 13360 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 11553128 is about 3398.9892615306. The cubic root of 11553128 is about 226.0649303085.

Adding to 11553128 its reverse (82135511), we get a palindrome (93688639).

The spelling of 11553128 in words is "eleven million, five hundred fifty-three thousand, one hundred twenty-eight".