36615281 has 2 divisors, whose sum is σ = 36615282. Its totient is φ = 36615280.

The previous prime is 36615259. The next prime is 36615289. The reversal of 36615281 is 18251663.

It is a happy number.

36615281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19936225 + 16679056 = 4465^2 + 4084^2 .

It is a cyclic number.

It is not a de Polignac number, because 36615281 - 2¹⁴ = 36598897 is a prime.

It is a super-2 number, since 2×36615281² = 2681357605417922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36615289) 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, 18307640 + 18307641.

It is an arithmetic number, because the mean of its divisors is an integer number (18307641).

Almost surely, 2^36615281 is an apocalyptic number.

It is an amenable number.

36615281 is a deficient number, since it is larger than the sum of its proper divisors (1).

36615281 is an equidigital number, since it uses as much as digits as its factorization.

36615281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 36615281 is about 6051.0561887988. The cubic root of 36615281 is about 332.0632318959.

The spelling of 36615281 in words is "thirty-six million, six hundred fifteen thousand, two hundred eighty-one".