36129909 has 8 divisors (see below), whose sum is σ = 48331360. Its totient is φ = 24007536.

The previous prime is 36129893. The next prime is 36129923. The reversal of 36129909 is 90992163.

It is a happy number.

36129909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36129909 - 2⁴ = 36129893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36129959) 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 in 7 ways as a sum of consecutive naturals, for example, 18694 + ... + 20535.

It is an arithmetic number, because the mean of its divisors is an integer number (6041420).

Almost surely, 2^36129909 is an apocalyptic number.

It is an amenable number.

36129909 is a deficient number, since it is larger than the sum of its proper divisors (12201451).

36129909 is a wasteful number, since it uses less digits than its factorization.

36129909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39539.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 36129909 is about 6010.8160011765. The cubic root of 36129909 is about 330.5894240853.

The spelling of 36129909 in words is "thirty-six million, one hundred twenty-nine thousand, nine hundred nine".