254720143 has 2 divisors, whose sum is σ = 254720144. Its totient is φ = 254720142.

The previous prime is 254720117. The next prime is 254720159. The reversal of 254720143 is 341027452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254720143 - 2⁹ = 254719631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254720243) 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, 127360071 + 127360072.

It is an arithmetic number, because the mean of its divisors is an integer number (127360072).

Almost surely, 2^254720143 is an apocalyptic number.

254720143 is a deficient number, since it is larger than the sum of its proper divisors (1).

254720143 is an equidigital number, since it uses as much as digits as its factorization.

254720143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 254720143 is about 15959.9543545713. The cubic root of 254720143 is about 633.9005033486.

Adding to 254720143 its reverse (341027452), we get a palindrome (595747595).

The spelling of 254720143 in words is "two hundred fifty-four million, seven hundred twenty thousand, one hundred forty-three".