11504128 has 20 divisors (see below), whose sum is σ = 22986810. Its totient is φ = 5751808.

The previous prime is 11504093. The next prime is 11504137. The reversal of 11504128 is 82140511.

It can be written as a sum of positive squares in only one way, i.e., 8573184 + 2930944 = 2928^2 + 1712^2 .

It is a super-2 number, since 2×11504128² = 264689922080768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11504099 and 11504108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10723 + ... + 11746.

Almost surely, 2^11504128 is an apocalyptic number.

It is an amenable number.

11504128 is a deficient number, since it is larger than the sum of its proper divisors (11482682).

11504128 is an frugal number, since it uses more digits than its factorization.

11504128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22487 (or 22471 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 11504128 is about 3391.7735773486. The cubic root of 11504128 is about 225.7448761769.

Adding to 11504128 its reverse (82140511), we get a palindrome (93644639).

The spelling of 11504128 in words is "eleven million, five hundred four thousand, one hundred twenty-eight".