11856118 has 4 divisors (see below), whose sum is σ = 17784180. Its totient is φ = 5928058.

The previous prime is 11856113. The next prime is 11856139. The reversal of 11856118 is 81165811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81165811 = 43 ⋅1887577.

It is a self number, because there is not a number n which added to its sum of digits gives 11856118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11856113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2964028 + ... + 2964031.

It is an arithmetic number, because the mean of its divisors is an integer number (4446045).

Almost surely, 2^11856118 is an apocalyptic number.

11856118 is a deficient number, since it is larger than the sum of its proper divisors (5928062).

11856118 is an equidigital number, since it uses as much as digits as its factorization.

11856118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928061.

The product of its digits is 1920, while the sum is 31.

The square root of 11856118 is about 3443.2714095755. The cubic root of 11856118 is about 228.0241458987.

The spelling of 11856118 in words is "eleven million, eight hundred fifty-six thousand, one hundred eighteen".