72140840161141 has 2 divisors, whose sum is σ = 72140840161142. Its totient is φ = 72140840161140.

The previous prime is 72140840161139. The next prime is 72140840161199. The reversal of 72140840161141 is 14116104804127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71626685195025 + 514154966116 = 8463255^2 + 717046^2 .

It is an emirp because it is prime and its reverse (14116104804127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72140840161141 - 2¹ = 72140840161139 is a prime.

Together with 72140840161139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 72140840161094 and 72140840161103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72140840161541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36070420080570 + 36070420080571.

It is an arithmetic number, because the mean of its divisors is an integer number (36070420080571).

Almost surely, 2^{72140840161141} is an apocalyptic number.

It is an amenable number.

72140840161141 is a deficient number, since it is larger than the sum of its proper divisors (1).

72140840161141 is an equidigital number, since it uses as much as digits as its factorization.

72140840161141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

Adding to 72140840161141 its reverse (14116104804127), we get a palindrome (86256944965268).

The spelling of 72140840161141 in words is "seventy-two trillion, one hundred forty billion, eight hundred forty million, one hundred sixty-one thousand, one hundred forty-one".