201064009 has 4 divisors (see below), whose sum is σ = 201474000. Its totient is φ = 200654020.

The previous prime is 201063971. The next prime is 201064013. The reversal of 201064009 is 900460102.

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.

It is a cyclic number.

It is not a de Polignac number, because 201064009 - 2⁷ = 201063881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201064309) 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, 204259 + ... + 205240.

It is an arithmetic number, because the mean of its divisors is an integer number (50368500).

Almost surely, 2^201064009 is an apocalyptic number.

It is an amenable number.

201064009 is a deficient number, since it is larger than the sum of its proper divisors (409991).

201064009 is an equidigital number, since it uses as much as digits as its factorization.

201064009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409990.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 201064009 is about 14179.7041224420. The cubic root of 201064009 is about 585.8387743861.

The spelling of 201064009 in words is "two hundred one million, sixty-four thousand, nine".