71095391 has 2 divisors, whose sum is σ = 71095392. Its totient is φ = 71095390.

The previous prime is 71095361. The next prime is 71095417. The reversal of 71095391 is 19359017.

It is a strong prime.

It is an emirp because it is prime and its reverse (19359017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71095391 - 2¹⁰ = 71094367 is a prime.

It is a Chen prime.

It is equal to p_4178645 and since 71095391 and 4178645 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71095361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35547695 + 35547696.

It is an arithmetic number, because the mean of its divisors is an integer number (35547696).

Almost surely, 2^71095391 is an apocalyptic number.

71095391 is a deficient number, since it is larger than the sum of its proper divisors (1).

71095391 is an equidigital number, since it uses as much as digits as its factorization.

71095391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 71095391 is about 8431.8082876688. The cubic root of 71095391 is about 414.2671364355.

The spelling of 71095391 in words is "seventy-one million, ninety-five thousand, three hundred ninety-one".