102204609 has 24 divisors (see below), whose sum is σ = 148449600. Its totient is φ = 62517312.

The previous prime is 102204577. The next prime is 102204631. The reversal of 102204609 is 906402201.

It is not a de Polignac number, because 102204609 - 2⁵ = 102204577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102204689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100387 + ... + 101399.

It is an arithmetic number, because the mean of its divisors is an integer number (6185400).

Almost surely, 2^102204609 is an apocalyptic number.

It is an amenable number.

102204609 is a deficient number, since it is larger than the sum of its proper divisors (46244991).

102204609 is a wasteful number, since it uses less digits than its factorization.

102204609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 102204609 is about 10109.6295184344. The cubic root of 102204609 is about 467.5450826342.

The spelling of 102204609 in words is "one hundred two million, two hundred four thousand, six hundred nine".