236866241 has 2 divisors, whose sum is σ = 236866242. Its totient is φ = 236866240.

The previous prime is 236866211. The next prime is 236866249. The reversal of 236866241 is 142668632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234702400 + 2163841 = 15320^2 + 1471^2 .

It is a cyclic number.

It is not a de Polignac number, because 236866241 - 2¹⁴ = 236849857 is a prime.

It is a super-3 number, since 3×236866241³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 236866195 and 236866204.

It is not a weakly prime, because it can be changed into another prime (236866249) 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, 118433120 + 118433121.

It is an arithmetic number, because the mean of its divisors is an integer number (118433121).

Almost surely, 2^236866241 is an apocalyptic number.

It is an amenable number.

236866241 is a deficient number, since it is larger than the sum of its proper divisors (1).

236866241 is an equidigital number, since it uses as much as digits as its factorization.

236866241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 236866241 is about 15390.4594148453. The cubic root of 236866241 is about 618.7298319992.

The spelling of 236866241 in words is "two hundred thirty-six million, eight hundred sixty-six thousand, two hundred forty-one".