70105271 has 2 divisors, whose sum is σ = 70105272. Its totient is φ = 70105270.

The previous prime is 70105253. The next prime is 70105279. The reversal of 70105271 is 17250107.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70105271 - 2⁶ = 70105207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70105279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35052635 + 35052636.

It is an arithmetic number, because the mean of its divisors is an integer number (35052636).

Almost surely, 2^70105271 is an apocalyptic number.

70105271 is a deficient number, since it is larger than the sum of its proper divisors (1).

70105271 is an equidigital number, since it uses as much as digits as its factorization.

70105271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 70105271 is about 8372.8890473958. The cubic root of 70105271 is about 412.3350226097.

Adding to 70105271 its reverse (17250107), we get a palindrome (87355378).

The spelling of 70105271 in words is "seventy million, one hundred five thousand, two hundred seventy-one".