238247533 has 2 divisors, whose sum is σ = 238247534. Its totient is φ = 238247532.

The previous prime is 238247519. The next prime is 238247543. The reversal of 238247533 is 335742832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231709284 + 6538249 = 15222^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 238247533 - 2⁹ = 238247021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238247492 and 238247501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238247543) 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, 119123766 + 119123767.

It is an arithmetic number, because the mean of its divisors is an integer number (119123767).

Almost surely, 2^238247533 is an apocalyptic number.

It is an amenable number.

238247533 is a deficient number, since it is larger than the sum of its proper divisors (1).

238247533 is an equidigital number, since it uses as much as digits as its factorization.

238247533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 37.

The square root of 238247533 is about 15435.2691262576. The cubic root of 238247533 is about 619.9302150037.

The spelling of 238247533 in words is "two hundred thirty-eight million, two hundred forty-seven thousand, five hundred thirty-three".