11575138 has 8 divisors (see below), whose sum is σ = 17383788. Its totient is φ = 5780544.

The previous prime is 11575133. The next prime is 11575217. The reversal of 11575138 is 83157511.

11575138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11135569 + 439569 = 3337^2 + 663^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11575133) 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, 1131 + ... + 4942.

Almost surely, 2^11575138 is an apocalyptic number.

11575138 is a deficient number, since it is larger than the sum of its proper divisors (5808650).

11575138 is an equidigital number, since it uses as much as digits as its factorization.

11575138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7028.

The product of its digits is 4200, while the sum is 31.

The square root of 11575138 is about 3402.2254481442. The cubic root of 11575138 is about 226.2083988915.

The spelling of 11575138 in words is "eleven million, five hundred seventy-five thousand, one hundred thirty-eight".