238236541 has 2 divisors, whose sum is σ = 238236542. Its totient is φ = 238236540.

The previous prime is 238236539. The next prime is 238236563. The reversal of 238236541 is 145632832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233631225 + 4605316 = 15285^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 238236541 - 2¹ = 238236539 is a prime.

Together with 238236539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 238236497 and 238236506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238236511) 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, 119118270 + 119118271.

It is an arithmetic number, because the mean of its divisors is an integer number (119118271).

Almost surely, 2^238236541 is an apocalyptic number.

It is an amenable number.

238236541 is a deficient number, since it is larger than the sum of its proper divisors (1).

238236541 is an equidigital number, since it uses as much as digits as its factorization.

238236541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 238236541 is about 15434.9130545008. The cubic root of 238236541 is about 619.9206809732.

The spelling of 238236541 in words is "two hundred thirty-eight million, two hundred thirty-six thousand, five hundred forty-one".