71315895 has 32 divisors (see below), whose sum is σ = 130798080. Its totient is φ = 32503680.

The previous prime is 71315831. The next prime is 71315897. The reversal of 71315895 is 59851317.

It is not a de Polignac number, because 71315895 - 2⁶ = 71315831 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71315897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43185 + ... + 44805.

It is an arithmetic number, because the mean of its divisors is an integer number (4087440).

Almost surely, 2^71315895 is an apocalyptic number.

71315895 is a deficient number, since it is larger than the sum of its proper divisors (59482185).

71315895 is a wasteful number, since it uses less digits than its factorization.

71315895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055.

The product of its digits is 37800, while the sum is 39.

The square root of 71315895 is about 8444.8738889340. The cubic root of 71315895 is about 414.6949807861.

The spelling of 71315895 in words is "seventy-one million, three hundred fifteen thousand, eight hundred ninety-five".