20114447 has 2 divisors, whose sum is σ = 20114448. Its totient is φ = 20114446.

The previous prime is 20114399. The next prime is 20114459. The reversal of 20114447 is 74441102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20114447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20114047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057223 + 10057224.

It is an arithmetic number, because the mean of its divisors is an integer number (10057224).

Almost surely, 2^20114447 is an apocalyptic number.

20114447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20114447 is an equidigital number, since it uses as much as digits as its factorization.

20114447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 20114447 is about 4484.9132656050. The cubic root of 20114447 is about 271.9585387712.

Adding to 20114447 its reverse (74441102), we get a palindrome (94555549).

The spelling of 20114447 in words is "twenty million, one hundred fourteen thousand, four hundred forty-seven".