238711243 has 2 divisors, whose sum is σ = 238711244. Its totient is φ = 238711242.

The previous prime is 238711217. The next prime is 238711279. The reversal of 238711243 is 342117832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238711243 - 2⁵ = 238711211 is a prime.

It is not a weakly prime, because it can be changed into another prime (238711283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119355621 + 119355622.

It is an arithmetic number, because the mean of its divisors is an integer number (119355622).

Almost surely, 2^238711243 is an apocalyptic number.

238711243 is a deficient number, since it is larger than the sum of its proper divisors (1).

238711243 is an equidigital number, since it uses as much as digits as its factorization.

238711243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 238711243 is about 15450.2829423930. The cubic root of 238711243 is about 620.3321520628.

The spelling of 238711243 in words is "two hundred thirty-eight million, seven hundred eleven thousand, two hundred forty-three".