36214721 has 2 divisors, whose sum is σ = 36214722. Its totient is φ = 36214720.

The previous prime is 36214699. The next prime is 36214751. The reversal of 36214721 is 12741263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30924721 + 5290000 = 5561^2 + 2300^2 .

It is an emirp because it is prime and its reverse (12741263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36214721 - 2¹⁸ = 35952577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36214751) 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, 18107360 + 18107361.

It is an arithmetic number, because the mean of its divisors is an integer number (18107361).

Almost surely, 2^36214721 is an apocalyptic number.

It is an amenable number.

36214721 is a deficient number, since it is larger than the sum of its proper divisors (1).

36214721 is an equidigital number, since it uses as much as digits as its factorization.

36214721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 36214721 is about 6017.8668147442. The cubic root of 36214721 is about 330.8478991332.

Adding to 36214721 its reverse (12741263), we get a palindrome (48955984).

The spelling of 36214721 in words is "thirty-six million, two hundred fourteen thousand, seven hundred twenty-one".