163247009 has 8 divisors (see below), whose sum is σ = 164687040. Its totient is φ = 161812816.

The previous prime is 163246999. The next prime is 163247017. The reversal of 163247009 is 900742361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163247009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163247059) 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, 68807 + ... + 71139.

It is an arithmetic number, because the mean of its divisors is an integer number (20585880).

Almost surely, 2^163247009 is an apocalyptic number.

It is an amenable number.

163247009 is a deficient number, since it is larger than the sum of its proper divisors (1440031).

163247009 is a wasteful number, since it uses less digits than its factorization.

163247009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 163247009 is about 12776.8152917697. The cubic root of 163247009 is about 546.5313484142.

The spelling of 163247009 in words is "one hundred sixty-three million, two hundred forty-seven thousand, nine".