36220531 has 2 divisors, whose sum is σ = 36220532. Its totient is φ = 36220530.

The previous prime is 36220529. The next prime is 36220537. The reversal of 36220531 is 13502263.

36220531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13502263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36220531 - 2¹ = 36220529 is a prime.

It is a super-2 number, since 2×36220531² = 2623853731843922, which contains 22 as substring.

Together with 36220529, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36220537) 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, 18110265 + 18110266.

It is an arithmetic number, because the mean of its divisors is an integer number (18110266).

Almost surely, 2^36220531 is an apocalyptic number.

36220531 is a deficient number, since it is larger than the sum of its proper divisors (1).

36220531 is an equidigital number, since it uses as much as digits as its factorization.

36220531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 36220531 is about 6018.3495245790. The cubic root of 36220531 is about 330.8655910501.

Adding to 36220531 its reverse (13502263), we get a palindrome (49722794).

The spelling of 36220531 in words is "thirty-six million, two hundred twenty thousand, five hundred thirty-one".