229919 has 4 divisors (see below), whose sum is σ = 242040. Its totient is φ = 217800.

The previous prime is 229903. The next prime is 229937. The reversal of 229919 is 919922.

229919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 919922 = 2 ⋅459961.

It is a cyclic number.

It is not a de Polignac number, because 229919 - 2⁴ = 229903 is a prime.

It is a super-2 number, since 2×229919² = 105725493122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229939) 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, 6032 + ... + 6069.

It is an arithmetic number, because the mean of its divisors is an integer number (60510).

2²²⁹⁹¹⁹ is an apocalyptic number.

229919 is a deficient number, since it is larger than the sum of its proper divisors (12121).

229919 is a wasteful number, since it uses less digits than its factorization.

229919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120.

The product of its digits is 2916, while the sum is 32.

The square root of 229919 is about 479.4986965571. The cubic root of 229919 is about 61.2620634298.

It can be divided in two parts, 2299 and 19, that multiplied together give a square (43681 = 209²).

The spelling of 229919 in words is "two hundred twenty-nine thousand, nine hundred nineteen".