71027249 has 2 divisors, whose sum is σ = 71027250. Its totient is φ = 71027248.

The previous prime is 71027237. The next prime is 71027267. The reversal of 71027249 is 94272017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47679025 + 23348224 = 6905^2 + 4832^2 .

It is a cyclic number.

It is not a de Polignac number, because 71027249 - 2⁴ = 71027233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71027269) 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, 35513624 + 35513625.

It is an arithmetic number, because the mean of its divisors is an integer number (35513625).

Almost surely, 2^71027249 is an apocalyptic number.

It is an amenable number.

71027249 is a deficient number, since it is larger than the sum of its proper divisors (1).

71027249 is an equidigital number, since it uses as much as digits as its factorization.

71027249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 71027249 is about 8427.7665487364. The cubic root of 71027249 is about 414.1347414734.

The spelling of 71027249 in words is "seventy-one million, twenty-seven thousand, two hundred forty-nine".