236242247 has 2 divisors, whose sum is σ = 236242248. Its totient is φ = 236242246.

The previous prime is 236242213. The next prime is 236242249. The reversal of 236242247 is 742242632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 236242247 - 2¹² = 236238151 is a prime.

Together with 236242249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236242249) 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, 118121123 + 118121124.

It is an arithmetic number, because the mean of its divisors is an integer number (118121124).

Almost surely, 2^236242247 is an apocalyptic number.

236242247 is a deficient number, since it is larger than the sum of its proper divisors (1).

236242247 is an equidigital number, since it uses as much as digits as its factorization.

236242247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 32.

The square root of 236242247 is about 15370.1739417614. The cubic root of 236242247 is about 618.1860325005.

Adding to 236242247 its reverse (742242632), we get a palindrome (978484879).

The spelling of 236242247 in words is "two hundred thirty-six million, two hundred forty-two thousand, two hundred forty-seven".