36224231 has 2 divisors, whose sum is σ = 36224232. Its totient is φ = 36224230.

The previous prime is 36224207. The next prime is 36224261. The reversal of 36224231 is 13242263.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36224231 is a prime.

It is a super-2 number, since 2×36224231² = 2624389823082722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 36224197 and 36224206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36224261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18112115 + 18112116.

It is an arithmetic number, because the mean of its divisors is an integer number (18112116).

Almost surely, 2^36224231 is an apocalyptic number.

36224231 is a deficient number, since it is larger than the sum of its proper divisors (1).

36224231 is an equidigital number, since it uses as much as digits as its factorization.

36224231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 36224231 is about 6018.6569099758. The cubic root of 36224231 is about 330.8768568614.

Adding to 36224231 its reverse (13242263), we get a palindrome (49466494).

The spelling of 36224231 in words is "thirty-six million, two hundred twenty-four thousand, two hundred thirty-one".