229271665 has 16 divisors (see below), whose sum is σ = 314675712. Its totient is φ = 157091904.

The previous prime is 229271663. The next prime is 229271677. The reversal of 229271665 is 566172922.

229271665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 229271665 - 2¹ = 229271663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229271663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84307 + ... + 86983.

It is an arithmetic number, because the mean of its divisors is an integer number (19667232).

Almost surely, 2^229271665 is an apocalyptic number.

It is an amenable number.

229271665 is a deficient number, since it is larger than the sum of its proper divisors (85404047).

229271665 is a wasteful number, since it uses less digits than its factorization.

229271665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136.

The product of its digits is 90720, while the sum is 40.

The square root of 229271665 is about 15141.7193541553. The cubic root of 229271665 is about 612.0451511322.

The spelling of 229271665 in words is "two hundred twenty-nine million, two hundred seventy-one thousand, six hundred sixty-five".