254340041447 has 2 divisors, whose sum is σ = 254340041448. Its totient is φ = 254340041446.

The previous prime is 254340041443. The next prime is 254340041531. The reversal of 254340041447 is 744140043452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254340041447 - 2² = 254340041443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254340041447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254340041441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127170020723 + 127170020724.

It is an arithmetic number, because the mean of its divisors is an integer number (127170020724).

Almost surely, 2^254340041447 is an apocalyptic number.

254340041447 is a deficient number, since it is larger than the sum of its proper divisors (1).

254340041447 is an equidigital number, since it uses as much as digits as its factorization.

254340041447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 38.

Adding to 254340041447 its reverse (744140043452), we get a palindrome (998480084899).

The spelling of 254340041447 in words is "two hundred fifty-four billion, three hundred forty million, forty-one thousand, four hundred forty-seven".