11947127 has 2 divisors, whose sum is σ = 11947128. Its totient is φ = 11947126.

The previous prime is 11947123. The next prime is 11947129. The reversal of 11947127 is 72174911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11947127 - 2² = 11947123 is a prime.

Together with 11947129, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11947093 and 11947102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11947123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5973563 + 5973564.

It is an arithmetic number, because the mean of its divisors is an integer number (5973564).

Almost surely, 2^11947127 is an apocalyptic number.

11947127 is a deficient number, since it is larger than the sum of its proper divisors (1).

11947127 is an equidigital number, since it uses as much as digits as its factorization.

11947127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 32.

The square root of 11947127 is about 3456.4616300489. The cubic root of 11947127 is about 228.6061063643.

The spelling of 11947127 in words is "eleven million, nine hundred forty-seven thousand, one hundred twenty-seven".