229987265 has 4 divisors (see below), whose sum is σ = 275984724. Its totient is φ = 183989808.

The previous prime is 229987231. The next prime is 229987279. The reversal of 229987265 is 562789922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562789922 = 2 ⋅281394961.

It can be written as a sum of positive squares in 2 ways, for example, as 177395761 + 52591504 = 13319^2 + 7252^2 .

It is a cyclic number.

It is not a de Polignac number, because 229987265 - 2¹⁶ = 229921729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22998722 + ... + 22998731.

It is an arithmetic number, because the mean of its divisors is an integer number (68996181).

Almost surely, 2^229987265 is an apocalyptic number.

It is an amenable number.

229987265 is a deficient number, since it is larger than the sum of its proper divisors (45997459).

229987265 is an equidigital number, since it uses as much as digits as its factorization.

229987265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45997458.

The product of its digits is 1088640, while the sum is 50.

The square root of 229987265 is about 15165.3310217746. The cubic root of 229987265 is about 612.6812591404.

The spelling of 229987265 in words is "two hundred twenty-nine million, nine hundred eighty-seven thousand, two hundred sixty-five".