11842147 has 4 divisors (see below), whose sum is σ = 11857360. Its totient is φ = 11826936.

The previous prime is 11842139. The next prime is 11842163. The reversal of 11842147 is 74124811.

11842147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11842147 - 2³ = 11842139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11842177) 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, 6372 + ... + 8017.

It is an arithmetic number, because the mean of its divisors is an integer number (2964340).

Almost surely, 2^11842147 is an apocalyptic number.

11842147 is a deficient number, since it is larger than the sum of its proper divisors (15213).

11842147 is an equidigital number, since it uses as much as digits as its factorization.

11842147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15212.

The product of its digits is 1792, while the sum is 28.

The square root of 11842147 is about 3441.2420722756. The cubic root of 11842147 is about 227.9345444094.

Adding to 11842147 its reverse (74124811), we get a palindrome (85966958).

The spelling of 11842147 in words is "eleven million, eight hundred forty-two thousand, one hundred forty-seven".