254538239 has 2 divisors, whose sum is σ = 254538240. Its totient is φ = 254538238.

The previous prime is 254538181. The next prime is 254538259. The reversal of 254538239 is 932835452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254538239 is a prime.

It is a super-2 number, since 2×254538239² = 129579430226442242, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 254538196 and 254538205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254538259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127269119 + 127269120.

It is an arithmetic number, because the mean of its divisors is an integer number (127269120).

Almost surely, 2^254538239 is an apocalyptic number.

254538239 is a deficient number, since it is larger than the sum of its proper divisors (1).

254538239 is an equidigital number, since it uses as much as digits as its factorization.

254538239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 41.

The square root of 254538239 is about 15954.2545736239. The cubic root of 254538239 is about 633.7495710413.

The spelling of 254538239 in words is "two hundred fifty-four million, five hundred thirty-eight thousand, two hundred thirty-nine".