11166238 has 4 divisors (see below), whose sum is σ = 16749360. Its totient is φ = 5583118.

The previous prime is 11166223. The next prime is 11166271. The reversal of 11166238 is 83266111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83266111 = 173 ⋅481307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2791558 + ... + 2791561.

It is an arithmetic number, because the mean of its divisors is an integer number (4187340).

Almost surely, 2^11166238 is an apocalyptic number.

11166238 is a deficient number, since it is larger than the sum of its proper divisors (5583122).

11166238 is an equidigital number, since it uses as much as digits as its factorization.

11166238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5583121.

The product of its digits is 1728, while the sum is 28.

The square root of 11166238 is about 3341.5921354947. The cubic root of 11166238 is about 223.5127456126.

The spelling of 11166238 in words is "eleven million, one hundred sixty-six thousand, two hundred thirty-eight".