71345807141 has 4 divisors (see below), whose sum is σ = 81538065312. Its totient is φ = 61153548972.

The previous prime is 71345807123. The next prime is 71345807149. The reversal of 71345807141 is 14170854317.

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 71345807141 - 2¹⁸ = 71345544997 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 (71345807149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5096129075 + ... + 5096129088.

It is an arithmetic number, because the mean of its divisors is an integer number (20384516328).

Almost surely, 2^71345807141 is an apocalyptic number.

It is an amenable number.

71345807141 is a deficient number, since it is larger than the sum of its proper divisors (10192258171).

71345807141 is a wasteful number, since it uses less digits than its factorization.

71345807141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192258170.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 71345807141 in words is "seventy-one billion, three hundred forty-five million, eight hundred seven thousand, one hundred forty-one".