173145742841 has 2 divisors, whose sum is σ = 173145742842. Its totient is φ = 173145742840.

The previous prime is 173145742837. The next prime is 173145742909. The reversal of 173145742841 is 148247541371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134029210000 + 39116532841 = 366100^2 + 197779^2 .

It is a cyclic number.

It is not a de Polignac number, because 173145742841 - 2² = 173145742837 is a prime.

It is not a weakly prime, because it can be changed into another prime (173145742811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86572871420 + 86572871421.

It is an arithmetic number, because the mean of its divisors is an integer number (86572871421).

Almost surely, 2^173145742841 is an apocalyptic number.

It is an amenable number.

173145742841 is a deficient number, since it is larger than the sum of its proper divisors (1).

173145742841 is an equidigital number, since it uses as much as digits as its factorization.

173145742841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The spelling of 173145742841 in words is "one hundred seventy-three billion, one hundred forty-five million, seven hundred forty-two thousand, eight hundred forty-one".