202100609 has 8 divisors (see below), whose sum is σ = 214036800. Its totient is φ = 190426896.

The previous prime is 202100599. The next prime is 202100621. The reversal of 202100609 is 906001202.

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 202100609 - 2¹² = 202096513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202100659) 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 7 ways as a sum of consecutive naturals, for example, 64034 + ... + 67115.

It is an arithmetic number, because the mean of its divisors is an integer number (26754600).

Almost surely, 2^202100609 is an apocalyptic number.

It is an amenable number.

202100609 is a deficient number, since it is larger than the sum of its proper divisors (11936191).

202100609 is a wasteful number, since it uses less digits than its factorization.

202100609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131239.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 202100609 is about 14216.2093752167. The cubic root of 202100609 is about 586.8438271707.

The spelling of 202100609 in words is "two hundred two million, one hundred thousand, six hundred nine".