71105117 has 4 divisors (see below), whose sum is σ = 71138496. Its totient is φ = 71071740.

The previous prime is 71105113. The next prime is 71105119. The reversal of 71105117 is 71150117.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71105117 - 2² = 71105113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71105092 and 71105101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71105113) 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, 13259 + ... + 17832.

It is an arithmetic number, because the mean of its divisors is an integer number (17784624).

Almost surely, 2^71105117 is an apocalyptic number.

It is an amenable number.

71105117 is a deficient number, since it is larger than the sum of its proper divisors (33379).

71105117 is a wasteful number, since it uses less digits than its factorization.

71105117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33378.

The product of its (nonzero) digits is 245, while the sum is 23.

The square root of 71105117 is about 8432.3850125572. The cubic root of 71105117 is about 414.2860264479.

The spelling of 71105117 in words is "seventy-one million, one hundred five thousand, one hundred seventeen".