36230021 has 2 divisors, whose sum is σ = 36230022. Its totient is φ = 36230020.

The previous prime is 36230003. The next prime is 36230023. The reversal of 36230021 is 12003263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30129121 + 6100900 = 5489^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 36230021 - 2⁶ = 36229957 is a prime.

It is a super-2 number, since 2×36230021² = 2625228843320882, which contains 22 as substring.

Together with 36230023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36230023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18115010 + 18115011.

It is an arithmetic number, because the mean of its divisors is an integer number (18115011).

Almost surely, 2^36230021 is an apocalyptic number.

It is an amenable number.

36230021 is a deficient number, since it is larger than the sum of its proper divisors (1).

36230021 is an equidigital number, since it uses as much as digits as its factorization.

36230021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 36230021 is about 6019.1378950810. The cubic root of 36230021 is about 330.8944847943.

Adding to 36230021 its reverse (12003263), we get a palindrome (48233284).

The spelling of 36230021 in words is "thirty-six million, two hundred thirty thousand, twenty-one".