254481239 has 2 divisors, whose sum is σ = 254481240. Its totient is φ = 254481238.

The previous prime is 254481233. The next prime is 254481247. The reversal of 254481239 is 932184452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254481239 - 2¹² = 254477143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254481233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127240619 + 127240620.

It is an arithmetic number, because the mean of its divisors is an integer number (127240620).

Almost surely, 2^254481239 is an apocalyptic number.

254481239 is a deficient number, since it is larger than the sum of its proper divisors (1).

254481239 is an equidigital number, since it uses as much as digits as its factorization.

254481239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 254481239 is about 15952.4681162509. The cubic root of 254481239 is about 633.7022612900.

The spelling of 254481239 in words is "two hundred fifty-four million, four hundred eighty-one thousand, two hundred thirty-nine".