10201209 has 16 divisors (see below), whose sum is σ = 14100480. Its totient is φ = 6555920.

The previous prime is 10201193. The next prime is 10201211. The reversal of 10201209 is 90210201.

It is a happy number.

10201209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10201209 - 2⁴ = 10201193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10201229) 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 15 ways as a sum of consecutive naturals, for example, 9502 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (881280).

Almost surely, 2^10201209 is an apocalyptic number.

It is an amenable number.

10201209 is a deficient number, since it is larger than the sum of its proper divisors (3899271).

10201209 is a wasteful number, since it uses less digits than its factorization.

10201209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 10201209 is about 3193.9331552179. The cubic root of 10201209 is about 216.8788566891.

The spelling of 10201209 in words is "ten million, two hundred one thousand, two hundred nine".