254231239 has 2 divisors, whose sum is σ = 254231240. Its totient is φ = 254231238.

The previous prime is 254231233. The next prime is 254231261. The reversal of 254231239 is 932132452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254231239 - 2⁷ = 254231111 is a prime.

It is equal to p_13898011 and since 254231239 and 13898011 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254231239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254231233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127115619 + 127115620.

It is an arithmetic number, because the mean of its divisors is an integer number (127115620).

Almost surely, 2^254231239 is an apocalyptic number.

254231239 is a deficient number, since it is larger than the sum of its proper divisors (1).

254231239 is an equidigital number, since it uses as much as digits as its factorization.

254231239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 254231239 is about 15944.6304127753. The cubic root of 254231239 is about 633.4946788989.

It can be divided in two parts, 25423 and 1239, that added together give a palindrome (26662).

The spelling of 254231239 in words is "two hundred fifty-four million, two hundred thirty-one thousand, two hundred thirty-nine".