229985173 has 4 divisors (see below), whose sum is σ = 250892928. Its totient is φ = 209077420.

The previous prime is 229985153. The next prime is 229985183. The reversal of 229985173 is 371589922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 229985173 - 2⁹ = 229984661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229985153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10453861 + ... + 10453882.

It is an arithmetic number, because the mean of its divisors is an integer number (62723232).

Almost surely, 2^229985173 is an apocalyptic number.

It is an amenable number.

229985173 is a deficient number, since it is larger than the sum of its proper divisors (20907755).

229985173 is a wasteful number, since it uses less digits than its factorization.

229985173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20907754.

The product of its digits is 272160, while the sum is 46.

The square root of 229985173 is about 15165.2620485107. The cubic root of 229985173 is about 612.6794014534.

The spelling of 229985173 in words is "two hundred twenty-nine million, nine hundred eighty-five thousand, one hundred seventy-three".