71008138141 has 2 divisors, whose sum is σ = 71008138142. Its totient is φ = 71008138140.

The previous prime is 71008138127. The next prime is 71008138163. The reversal of 71008138141 is 14183180017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66953632516 + 4054505625 = 258754^2 + 63675^2 .

It is a cyclic number.

It is not a de Polignac number, because 71008138141 - 2⁷ = 71008138013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71008138097 and 71008138106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71008838141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35504069070 + 35504069071.

It is an arithmetic number, because the mean of its divisors is an integer number (35504069071).

Almost surely, 2^71008138141 is an apocalyptic number.

It is an amenable number.

71008138141 is a deficient number, since it is larger than the sum of its proper divisors (1).

71008138141 is an equidigital number, since it uses as much as digits as its factorization.

71008138141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 34.

The spelling of 71008138141 in words is "seventy-one billion, eight million, one hundred thirty-eight thousand, one hundred forty-one".