254421017 has 2 divisors, whose sum is σ = 254421018. Its totient is φ = 254421016.

The previous prime is 254420941. The next prime is 254421029. The reversal of 254421017 is 710124452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237807241 + 16613776 = 15421^2 + 4076^2 .

It is a cyclic number.

It is not a de Polignac number, because 254421017 - 2¹⁶ = 254355481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254421217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127210508 + 127210509.

It is an arithmetic number, because the mean of its divisors is an integer number (127210509).

Almost surely, 2^254421017 is an apocalyptic number.

It is an amenable number.

254421017 is a deficient number, since it is larger than the sum of its proper divisors (1).

254421017 is an equidigital number, since it uses as much as digits as its factorization.

254421017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 254421017 is about 15950.5804596573. The cubic root of 254421017 is about 633.6522696174.

Adding to 254421017 its reverse (710124452), we get a palindrome (964545469).

The spelling of 254421017 in words is "two hundred fifty-four million, four hundred twenty-one thousand, seventeen".