71038485145 has 4 divisors (see below), whose sum is σ = 85246182180. Its totient is φ = 56830788112.

The previous prime is 71038485143. The next prime is 71038485151. The reversal of 71038485145 is 54158483017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30728687616 + 40309797529 = 175296^2 + 200773^2 .

It is a cyclic number.

It is not a de Polignac number, because 71038485145 - 2¹ = 71038485143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71038485095 and 71038485104.

It is not an unprimeable number, because it can be changed into a prime (71038485143) 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, 7103848510 + ... + 7103848519.

It is an arithmetic number, because the mean of its divisors is an integer number (21311545545).

Almost surely, 2^71038485145 is an apocalyptic number.

It is an amenable number.

71038485145 is a deficient number, since it is larger than the sum of its proper divisors (14207697035).

71038485145 is a wasteful number, since it uses less digits than its factorization.

71038485145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14207697034.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 71038485145 in words is "seventy-one billion, thirty-eight million, four hundred eighty-five thousand, one hundred forty-five".