229971 has 16 divisors (see below), whose sum is σ = 359424. Its totient is φ = 128064.

The previous prime is 229963. The next prime is 229979. The reversal of 229971 is 179922.

229971 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (229963) and next prime (229979).

It is not a de Polignac number, because 229971 - 2³ = 229963 is a prime.

It is an Ulam number.

229971 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (229979) 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, 871 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (22464).

2²²⁹⁹⁷¹ is an apocalyptic number.

229971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

229971 is a deficient number, since it is larger than the sum of its proper divisors (129453).

229971 is a wasteful number, since it uses less digits than its factorization.

229971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 2268, while the sum is 30.

The square root of 229971 is about 479.5529167881. The cubic root of 229971 is about 61.2666815593.

The spelling of 229971 in words is "two hundred twenty-nine thousand, nine hundred seventy-one".