36122381 has 2 divisors, whose sum is σ = 36122382. Its totient is φ = 36122380.

The previous prime is 36122377. The next prime is 36122389. The reversal of 36122381 is 18322163.

36122381 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 can be written as a sum of positive squares in only one way, i.e., 29052100 + 7070281 = 5390^2 + 2659^2 .

It is a cyclic number.

It is not a de Polignac number, because 36122381 - 2² = 36122377 is a prime.

It is a super-2 number, since 2×36122381² = 2609652818218322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36122381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36122389) 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, 18061190 + 18061191.

It is an arithmetic number, because the mean of its divisors is an integer number (18061191).

Almost surely, 2^36122381 is an apocalyptic number.

It is an amenable number.

36122381 is a deficient number, since it is larger than the sum of its proper divisors (1).

36122381 is an equidigital number, since it uses as much as digits as its factorization.

36122381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 36122381 is about 6010.1897640590. The cubic root of 36122381 is about 330.5664620379.

The spelling of 36122381 in words is "thirty-six million, one hundred twenty-two thousand, three hundred eighty-one".