71056319 has 2 divisors, whose sum is σ = 71056320. Its totient is φ = 71056318.

The previous prime is 71056289. The next prime is 71056331. The reversal of 71056319 is 91365017.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71056319 is a prime.

It is a super-2 number, since 2×71056319² = 10098000939659522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71056519) 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, 35528159 + 35528160.

It is an arithmetic number, because the mean of its divisors is an integer number (35528160).

Almost surely, 2^71056319 is an apocalyptic number.

71056319 is a deficient number, since it is larger than the sum of its proper divisors (1).

71056319 is an equidigital number, since it uses as much as digits as its factorization.

71056319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 71056319 is about 8429.4910285260. The cubic root of 71056319 is about 414.1912327264.

The spelling of 71056319 in words is "seventy-one million, fifty-six thousand, three hundred nineteen".