238306249 has 2 divisors, whose sum is σ = 238306250. Its totient is φ = 238306248.

The previous prime is 238306247. The next prime is 238306261. The reversal of 238306249 is 942603832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196897024 + 41409225 = 14032^2 + 6435^2 .

It is a cyclic number.

It is not a de Polignac number, because 238306249 - 2¹ = 238306247 is a prime.

Together with 238306247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (238306241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119153124 + 119153125.

It is an arithmetic number, because the mean of its divisors is an integer number (119153125).

Almost surely, 2^238306249 is an apocalyptic number.

It is an amenable number.

238306249 is a deficient number, since it is larger than the sum of its proper divisors (1).

238306249 is an equidigital number, since it uses as much as digits as its factorization.

238306249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 238306249 is about 15437.1710167375. The cubic root of 238306249 is about 619.9811379971.

The spelling of 238306249 in words is "two hundred thirty-eight million, three hundred six thousand, two hundred forty-nine".