11533138 has 8 divisors (see below), whose sum is σ = 17327088. Its totient is φ = 5757444.

The previous prime is 11533117. The next prime is 11533141. The reversal of 11533138 is 83133511.

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

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, 2856 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (2165886).

Almost surely, 2^11533138 is an apocalyptic number.

11533138 is a deficient number, since it is larger than the sum of its proper divisors (5793950).

11533138 is an equidigital number, since it uses as much as digits as its factorization.

11533138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9128.

The product of its digits is 1080, while the sum is 25.

The square root of 11533138 is about 3396.0474083852. The cubic root of 11533138 is about 225.9344707814.

Adding to 11533138 its reverse (83133511), we get a palindrome (94666649).

The spelling of 11533138 in words is "eleven million, five hundred thirty-three thousand, one hundred thirty-eight".