11238505 has 8 divisors (see below), whose sum is σ = 13504392. Its totient is φ = 8978688.

The previous prime is 11238503. The next prime is 11238509. The reversal of 11238505 is 50583211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4210704 + 7027801 = 2052^2 + 2651^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11238505 - 2¹ = 11238503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11238505.

It is not an unprimeable number, because it can be changed into a prime (11238503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5619 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (1688049).

Almost surely, 2^11238505 is an apocalyptic number.

It is an amenable number.

11238505 is a deficient number, since it is larger than the sum of its proper divisors (2265887).

11238505 is a wasteful number, since it uses less digits than its factorization.

11238505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 11238505 is about 3352.3879548763. The cubic root of 11238505 is about 223.9938946571.

The spelling of 11238505 in words is "eleven million, two hundred thirty-eight thousand, five hundred five".