71160013 has 4 divisors (see below), whose sum is σ = 71207388. Its totient is φ = 71112640.

The previous prime is 71159987. The next prime is 71160041. The reversal of 71160013 is 31006117.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31006117 = 61 ⋅508297.

It can be written as a sum of positive squares in 2 ways, for example, as 45333289 + 25826724 = 6733^2 + 5082^2 .

It is a cyclic number.

It is not a de Polignac number, because 71160013 - 2⁵ = 71159981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71160043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21358 + ... + 24463.

It is an arithmetic number, because the mean of its divisors is an integer number (17801847).

Almost surely, 2^71160013 is an apocalyptic number.

It is an amenable number.

71160013 is a deficient number, since it is larger than the sum of its proper divisors (47375).

71160013 is a wasteful number, since it uses less digits than its factorization.

71160013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47374.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 71160013 is about 8435.6394541256. The cubic root of 71160013 is about 414.3926141612.

The spelling of 71160013 in words is "seventy-one million, one hundred sixty thousand, thirteen".