238225279 has 2 divisors, whose sum is σ = 238225280. Its totient is φ = 238225278.

The previous prime is 238225259. The next prime is 238225291. The reversal of 238225279 is 972522832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238225279 - 2⁷ = 238225151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238225259) 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, 119112639 + 119112640.

It is an arithmetic number, because the mean of its divisors is an integer number (119112640).

Almost surely, 2^238225279 is an apocalyptic number.

238225279 is a deficient number, since it is larger than the sum of its proper divisors (1).

238225279 is an equidigital number, since it uses as much as digits as its factorization.

238225279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 238225279 is about 15434.5482279204. The cubic root of 238225279 is about 619.9109124511.

The spelling of 238225279 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, two hundred seventy-nine".