36381223 has 2 divisors, whose sum is σ = 36381224. Its totient is φ = 36381222.

The previous prime is 36381221. The next prime is 36381251. The reversal of 36381223 is 32218363.

It is an a-pointer prime, because the next prime (36381251) can be obtained adding 36381223 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (32218363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36381223 - 2¹ = 36381221 is a prime.

Together with 36381221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 36381191 and 36381200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36381221) 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, 18190611 + 18190612.

It is an arithmetic number, because the mean of its divisors is an integer number (18190612).

Almost surely, 2^36381223 is an apocalyptic number.

36381223 is a deficient number, since it is larger than the sum of its proper divisors (1).

36381223 is an equidigital number, since it uses as much as digits as its factorization.

36381223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 36381223 is about 6031.6849221424. The cubic root of 36381223 is about 331.3541631361.

Adding to 36381223 its reverse (32218363), we get a palindrome (68599586).

The spelling of 36381223 in words is "thirty-six million, three hundred eighty-one thousand, two hundred twenty-three".