71541217141 has 8 divisors (see below), whose sum is σ = 71777735064. Its totient is φ = 71304768000.

The previous prime is 71541217117. The next prime is 71541217151. The reversal of 71541217141 is 14171214517.

It can be written as a sum of positive squares in 4 ways, for example, as 809687025 + 70731530116 = 28455^2 + 265954^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71541217141 - 2¹¹ = 71541215093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71541217097 and 71541217106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71541217151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840781 + ... + 2865853.

It is an arithmetic number, because the mean of its divisors is an integer number (8972216883).

Almost surely, 2^71541217141 is an apocalyptic number.

It is an amenable number.

71541217141 is a deficient number, since it is larger than the sum of its proper divisors (236517923).

71541217141 is a wasteful number, since it uses less digits than its factorization.

71541217141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34391.

The product of its digits is 7840, while the sum is 34.

The spelling of 71541217141 in words is "seventy-one billion, five hundred forty-one million, two hundred seventeen thousand, one hundred forty-one".