209850201 has 12 divisors (see below), whose sum is σ = 330673200. Its totient is φ = 127181880.

The previous prime is 209850169. The next prime is 209850203. The reversal of 209850201 is 102058902.

It is not a de Polignac number, because 209850201 - 2⁵ = 209850169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (209850203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1059751 + ... + 1059948.

It is an arithmetic number, because the mean of its divisors is an integer number (27556100).

Almost surely, 2^209850201 is an apocalyptic number.

It is an amenable number.

209850201 is a deficient number, since it is larger than the sum of its proper divisors (120822999).

209850201 is a wasteful number, since it uses less digits than its factorization.

209850201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119716 (or 2119713 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 209850201 is about 14486.2072676046. The cubic root of 209850201 is about 594.2508293457.

The spelling of 209850201 in words is "two hundred nine million, eight hundred fifty thousand, two hundred one".