36109009 has 4 divisors (see below), whose sum is σ = 36126720. Its totient is φ = 36091300.

The previous prime is 36108979. The next prime is 36109043. The reversal of 36109009 is 90090163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90090163 = 179 ⋅503297.

It is a cyclic number.

It is not a de Polignac number, because 36109009 - 2⁵ = 36108977 is a prime.

It is a super-3 number, since 3×36109009³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36109049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5329 + ... + 10030.

It is an arithmetic number, because the mean of its divisors is an integer number (9031680).

Almost surely, 2^36109009 is an apocalyptic number.

It is an amenable number.

36109009 is a deficient number, since it is larger than the sum of its proper divisors (17711).

36109009 is a wasteful number, since it uses less digits than its factorization.

36109009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17710.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 36109009 is about 6009.0772170109. The cubic root of 36109009 is about 330.5256666440.

The spelling of 36109009 in words is "thirty-six million, one hundred nine thousand, nine".