71456117 has 12 divisors (see below), whose sum is σ = 76719300. Its totient is φ = 66533376.

The previous prime is 71456089. The next prime is 71456129. The reversal of 71456117 is 71165417.

It can be written as a sum of positive squares in 6 ways, for example, as 17859076 + 53597041 = 4226^2 + 7321^2 .

It is not a de Polignac number, because 71456117 - 2⁸ = 71455861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71456417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26759 + ... + 29307.

It is an arithmetic number, because the mean of its divisors is an integer number (6393275).

Almost surely, 2^71456117 is an apocalyptic number.

It is an amenable number.

71456117 is a deficient number, since it is larger than the sum of its proper divisors (5263183).

71456117 is a wasteful number, since it uses less digits than its factorization.

71456117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 2663 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 71456117 is about 8453.1720081872. The cubic root of 71456117 is about 414.9665952693.

The spelling of 71456117 in words is "seventy-one million, four hundred fifty-six thousand, one hundred seventeen".