254350134221 has 2 divisors, whose sum is σ = 254350134222. Its totient is φ = 254350134220.

The previous prime is 254350134163. The next prime is 254350134229. The reversal of 254350134221 is 122431053452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151219876900 + 103130257321 = 388870^2 + 321139^2 .

It is a cyclic number.

It is not a de Polignac number, because 254350134221 - 2¹⁴ = 254350117837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254350134229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127175067110 + 127175067111.

It is an arithmetic number, because the mean of its divisors is an integer number (127175067111).

Almost surely, 2^254350134221 is an apocalyptic number.

It is an amenable number.

254350134221 is a deficient number, since it is larger than the sum of its proper divisors (1).

254350134221 is an equidigital number, since it uses as much as digits as its factorization.

254350134221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 254350134221 its reverse (122431053452), we get a palindrome (376781187673).

The spelling of 254350134221 in words is "two hundred fifty-four billion, three hundred fifty million, one hundred thirty-four thousand, two hundred twenty-one".