254986217 has 2 divisors, whose sum is σ = 254986218. Its totient is φ = 254986216.

The previous prime is 254986201. The next prime is 254986231. The reversal of 254986217 is 712689452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249134656 + 5851561 = 15784^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 254986217 - 2⁴ = 254986201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254986267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127493108 + 127493109.

It is an arithmetic number, because the mean of its divisors is an integer number (127493109).

Almost surely, 2^254986217 is an apocalyptic number.

It is an amenable number.

254986217 is a deficient number, since it is larger than the sum of its proper divisors (1).

254986217 is an equidigital number, since it uses as much as digits as its factorization.

254986217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 254986217 is about 15968.2878543694. The cubic root of 254986217 is about 634.1211451703.

The spelling of 254986217 in words is "two hundred fifty-four million, nine hundred eighty-six thousand, two hundred seventeen".