71270113 has 2 divisors, whose sum is σ = 71270114. Its totient is φ = 71270112.

The previous prime is 71270063. The next prime is 71270141. The reversal of 71270113 is 31107217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70761744 + 508369 = 8412^2 + 713^2 .

It is an emirp because it is prime and its reverse (31107217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71270113 - 2¹³ = 71261921 is a prime.

It is not a weakly prime, because it can be changed into another prime (71270183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35635056 + 35635057.

It is an arithmetic number, because the mean of its divisors is an integer number (35635057).

Almost surely, 2^71270113 is an apocalyptic number.

It is an amenable number.

71270113 is a deficient number, since it is larger than the sum of its proper divisors (1).

71270113 is an equidigital number, since it uses as much as digits as its factorization.

71270113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 71270113 is about 8442.1628152980. The cubic root of 71270113 is about 414.6062225005.

The spelling of 71270113 in words is "seventy-one million, two hundred seventy thousand, one hundred thirteen".