229105405 has 8 divisors (see below), whose sum is σ = 276107832. Its totient is φ = 182496768.

The previous prime is 229105397. The next prime is 229105421. The reversal of 229105405 is 504501922.

It can be written as a sum of positive squares in 4 ways, for example, as 30239001 + 198866404 = 5499^2 + 14102^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 229105405 - 2³ = 229105397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97164 + ... + 99493.

It is an arithmetic number, because the mean of its divisors is an integer number (34513479).

Almost surely, 2^229105405 is an apocalyptic number.

It is an amenable number.

229105405 is a deficient number, since it is larger than the sum of its proper divisors (47002427).

229105405 is a wasteful number, since it uses less digits than its factorization.

229105405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196895.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 229105405 is about 15136.2282289876. The cubic root of 229105405 is about 611.8971705927.

The spelling of 229105405 in words is "two hundred twenty-nine million, one hundred five thousand, four hundred five".