71314247 has 2 divisors, whose sum is σ = 71314248. Its totient is φ = 71314246.

The previous prime is 71314193. The next prime is 71314249. The reversal of 71314247 is 74241317.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71314247 - 2¹⁶ = 71248711 is a prime.

Together with 71314249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71314249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35657123 + 35657124.

It is an arithmetic number, because the mean of its divisors is an integer number (35657124).

Almost surely, 2^71314247 is an apocalyptic number.

71314247 is a deficient number, since it is larger than the sum of its proper divisors (1).

71314247 is an equidigital number, since it uses as much as digits as its factorization.

71314247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 71314247 is about 8444.7763143851. The cubic root of 71314247 is about 414.6917864417.

The spelling of 71314247 in words is "seventy-one million, three hundred fourteen thousand, two hundred forty-seven".