36012009 has 8 divisors (see below), whose sum is σ = 52381152. Its totient is φ = 21825440.

The previous prime is 36011977. The next prime is 36012017. The reversal of 36012009 is 90021063.

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

It is a cyclic number.

It is not a de Polignac number, because 36012009 - 2⁵ = 36011977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36012019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545604 + ... + 545669.

It is an arithmetic number, because the mean of its divisors is an integer number (6547644).

Almost surely, 2^36012009 is an apocalyptic number.

It is an amenable number.

36012009 is a deficient number, since it is larger than the sum of its proper divisors (16369143).

36012009 is a wasteful number, since it uses less digits than its factorization.

36012009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091287.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 36012009 is about 6001.0006665555. Note that the first 3 decimals coincide. The cubic root of 36012009 is about 330.2294364043.

The spelling of 36012009 in words is "thirty-six million, twelve thousand, nine".