254343161 has 2 divisors, whose sum is σ = 254343162. Its totient is φ = 254343160.

The previous prime is 254343121. The next prime is 254343163. The reversal of 254343161 is 161343452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215355625 + 38987536 = 14675^2 + 6244^2 .

It is a cyclic number.

It is not a de Polignac number, because 254343161 - 2⁶ = 254343097 is a prime.

Together with 254343163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254343163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127171580 + 127171581.

It is an arithmetic number, because the mean of its divisors is an integer number (127171581).

Almost surely, 2^254343161 is an apocalyptic number.

It is an amenable number.

254343161 is a deficient number, since it is larger than the sum of its proper divisors (1).

254343161 is an equidigital number, since it uses as much as digits as its factorization.

254343161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 254343161 is about 15948.1397347778. The cubic root of 254343161 is about 633.5876278610.

The spelling of 254343161 in words is "two hundred fifty-four million, three hundred forty-three thousand, one hundred sixty-one".