11528138 has 8 divisors (see below), whose sum is σ = 17888580. Its totient is φ = 5565280.

The previous prime is 11528123. The next prime is 11528149. The reversal of 11528138 is 83182511.

It can be written as a sum of positive squares in 2 ways, for example, as 11042329 + 485809 = 3323^2 + 697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 11528138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99323 + ... + 99438.

Almost surely, 2^11528138 is an apocalyptic number.

11528138 is a deficient number, since it is larger than the sum of its proper divisors (6360442).

11528138 is a wasteful number, since it uses less digits than its factorization.

11528138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198792.

The product of its digits is 1920, while the sum is 29.

The square root of 11528138 is about 3395.3111786698. The cubic root of 11528138 is about 225.9018160190.

The spelling of 11528138 in words is "eleven million, five hundred twenty-eight thousand, one hundred thirty-eight".