254343221250197 has 2 divisors, whose sum is σ = 254343221250198. Its totient is φ = 254343221250196.

The previous prime is 254343221250109. The next prime is 254343221250233. The reversal of 254343221250197 is 791052122343452.

254343221250197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163437789549841 + 90905431700356 = 12784279^2 + 9534434^2 .

It is a cyclic number.

It is not a de Polignac number, because 254343221250197 - 2³⁰ = 254342147508373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254343221250397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127171610625098 + 127171610625099.

It is an arithmetic number, because the mean of its divisors is an integer number (127171610625099).

Almost surely, 2^{254343221250197} is an apocalyptic number.

It is an amenable number.

254343221250197 is a deficient number, since it is larger than the sum of its proper divisors (1).

254343221250197 is an equidigital number, since it uses as much as digits as its factorization.

254343221250197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 254343221250197 in words is "two hundred fifty-four trillion, three hundred forty-three billion, two hundred twenty-one million, two hundred fifty thousand, one hundred ninety-seven".