71541201245 has 8 divisors (see below), whose sum is σ = 85851219384. Its totient is φ = 57231775744.

The previous prime is 71541201203. The next prime is 71541201289. The reversal of 71541201245 is 54210214517.

It can be written as a sum of positive squares in 4 ways, for example, as 3638743684 + 67902457561 = 60322^2 + 260581^2 .

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 71541201245 - 2⁶ = 71541201181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185897 + ... + 421473.

It is an arithmetic number, because the mean of its divisors is an integer number (10731402423).

Almost surely, 2^71541201245 is an apocalyptic number.

It is an amenable number.

71541201245 is a deficient number, since it is larger than the sum of its proper divisors (14310018139).

71541201245 is a wasteful number, since it uses less digits than its factorization.

71541201245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296319.

The product of its (nonzero) digits is 11200, while the sum is 32.

The spelling of 71541201245 in words is "seventy-one billion, five hundred forty-one million, two hundred one thousand, two hundred forty-five".