36281909 has 2 divisors, whose sum is σ = 36281910. Its totient is φ = 36281908.

The previous prime is 36281899. The next prime is 36281933. The reversal of 36281909 is 90918263.

36281909 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., 33466225 + 2815684 = 5785^2 + 1678^2 .

It is a cyclic number.

It is not a de Polignac number, because 36281909 - 2¹⁶ = 36216373 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36281969) 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, 18140954 + 18140955.

It is an arithmetic number, because the mean of its divisors is an integer number (18140955).

Almost surely, 2^36281909 is an apocalyptic number.

It is an amenable number.

36281909 is a deficient number, since it is larger than the sum of its proper divisors (1).

36281909 is an equidigital number, since it uses as much as digits as its factorization.

36281909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 36281909 is about 6023.4466047272. The cubic root of 36281909 is about 331.0523765323.

The spelling of 36281909 in words is "thirty-six million, two hundred eighty-one thousand, nine hundred nine".