254851169 has 2 divisors, whose sum is σ = 254851170. Its totient is φ = 254851168.

The previous prime is 254851151. The next prime is 254851171. The reversal of 254851169 is 961158452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182601169 + 72250000 = 13513^2 + 8500^2 .

It is a cyclic number.

It is not a de Polignac number, because 254851169 - 2¹⁶ = 254785633 is a prime.

It is a super-2 number, since 2×254851169² = 129898236681333122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 254851171, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (254851969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127425584 + 127425585.

It is an arithmetic number, because the mean of its divisors is an integer number (127425585).

Almost surely, 2^254851169 is an apocalyptic number.

It is an amenable number.

254851169 is a deficient number, since it is larger than the sum of its proper divisors (1).

254851169 is an equidigital number, since it uses as much as digits as its factorization.

254851169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 41.

The square root of 254851169 is about 15964.0586631345. The cubic root of 254851169 is about 634.0091758301.

The spelling of 254851169 in words is "two hundred fifty-four million, eight hundred fifty-one thousand, one hundred sixty-nine".