254006243 has 2 divisors, whose sum is σ = 254006244. Its totient is φ = 254006242.

The previous prime is 254006239. The next prime is 254006279. The reversal of 254006243 is 342600452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254006243 - 2² = 254006239 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254006743) 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, 127003121 + 127003122.

It is an arithmetic number, because the mean of its divisors is an integer number (127003122).

Almost surely, 2^254006243 is an apocalyptic number.

254006243 is a deficient number, since it is larger than the sum of its proper divisors (1).

254006243 is an equidigital number, since it uses as much as digits as its factorization.

254006243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 254006243 is about 15937.5733096353. The cubic root of 254006243 is about 633.3077416867.

Adding to 254006243 its reverse (342600452), we get a palindrome (596606695).

The spelling of 254006243 in words is "two hundred fifty-four million, six thousand, two hundred forty-three".