223608874129 has 9 divisors (see below), whose sum is σ = 225850105449. Its totient is φ = 221389681140.

The previous prime is 223608874087. The next prime is 223608874169. The reversal of 223608874129 is 921478806322.

The square root of 223608874129 is 472873.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 223608874129 - 2³⁷ = 86169920657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223608874169) 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 8 ways as a sum of consecutive naturals, for example, 48703624 + ... + 48708214.

It is an arithmetic number, because the mean of its divisors is an integer number (25094456161).

Almost surely, 2^223608874129 is an apocalyptic number.

223608874129 is the 472873-rd square number.

223608874129 is the 236437-th centered octagonal number.

It is an amenable number.

223608874129 is a deficient number, since it is larger than the sum of its proper divisors (2241231320).

223608874129 is an frugal number, since it uses more digits than its factorization.

223608874129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9388 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 223608874129 in words is "two hundred twenty-three billion, six hundred eight million, eight hundred seventy-four thousand, one hundred twenty-nine".