229215243 has 6 divisors (see below), whose sum is σ = 305655292. Its totient is φ = 152792680.

The previous prime is 229215229. The next prime is 229215253. The reversal of 229215243 is 342512922.

It is not a de Polignac number, because 229215243 - 2⁴ = 229215227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 229215243.

It is not an unprimeable number, because it can be changed into a prime (229215223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21853 + ... + 30593.

Almost surely, 2^229215243 is an apocalyptic number.

229215243 is a deficient number, since it is larger than the sum of its proper divisors (76440049).

229215243 is an frugal number, since it uses more digits than its factorization.

229215243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17485 (or 8744 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 229215243 is about 15139.8561089596. The cubic root of 229215243 is about 611.9949404725.

The spelling of 229215243 in words is "two hundred twenty-nine million, two hundred fifteen thousand, two hundred forty-three".