36206021 has 2 divisors, whose sum is σ = 36206022. Its totient is φ = 36206020.

The previous prime is 36205969. The next prime is 36206041. The reversal of 36206021 is 12060263.

It is an a-pointer prime, because the next prime (36206041) can be obtained adding 36206021 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33988900 + 2217121 = 5830^2 + 1489^2 .

It is an emirp because it is prime and its reverse (12060263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36206021 - 2¹⁰ = 36204997 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 36205984 and 36206002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36206041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18103010 + 18103011.

It is an arithmetic number, because the mean of its divisors is an integer number (18103011).

Almost surely, 2^36206021 is an apocalyptic number.

It is an amenable number.

36206021 is a deficient number, since it is larger than the sum of its proper divisors (1).

36206021 is an equidigital number, since it uses as much as digits as its factorization.

36206021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 36206021 is about 6017.1439238230. The cubic root of 36206021 is about 330.8214033955.

Adding to 36206021 its reverse (12060263), we get a palindrome (48266284).

The spelling of 36206021 in words is "thirty-six million, two hundred six thousand, twenty-one".