223161009 has 8 divisors (see below), whose sum is σ = 299059200. Its totient is φ = 148018416.

The previous prime is 223160999. The next prime is 223161011. The reversal of 223161009 is 900161322.

223161009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223161009 - 2¹³ = 223152817 is a prime.

It is a super-3 number, since 3×223161009³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223161009.

It is not an unprimeable number, because it can be changed into a prime (223161049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188209 + ... + 189390.

It is an arithmetic number, because the mean of its divisors is an integer number (37382400).

Almost surely, 2^223161009 is an apocalyptic number.

It is an amenable number.

223161009 is a deficient number, since it is larger than the sum of its proper divisors (75898191).

223161009 is a wasteful number, since it uses less digits than its factorization.

223161009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377799.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 223161009 is about 14938.5745303894. The cubic root of 223161009 is about 606.5586103821.

The spelling of 223161009 in words is "two hundred twenty-three million, one hundred sixty-one thousand, nine".