71008138145 has 16 divisors (see below), whose sum is σ = 97387107840. Its totient is φ = 48689035584.

The previous prime is 71008138141. The next prime is 71008138163. The reversal of 71008138145 is 54183180017.

It is a happy number.

It is not a de Polignac number, because 71008138145 - 2² = 71008138141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71008138099 and 71008138108.

It is not an unprimeable number, because it can be changed into a prime (71008138141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1139096 + ... + 1199814.

It is an arithmetic number, because the mean of its divisors is an integer number (6086694240).

Almost surely, 2^71008138145 is an apocalyptic number.

It is an amenable number.

71008138145 is a deficient number, since it is larger than the sum of its proper divisors (26378969695).

71008138145 is a wasteful number, since it uses less digits than its factorization.

71008138145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94144.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 71008138145 in words is "seventy-one billion, eight million, one hundred thirty-eight thousand, one hundred forty-five".