229161 has 4 divisors (see below), whose sum is σ = 305552. Its totient is φ = 152772.

The previous prime is 229157. The next prime is 229171. The reversal of 229161 is 161922.

229161 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 229161 - 2² = 229157 is a prime.

It is a D-number.

It is a Duffinian number.

229161 is strictly pandigital in base 7.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 229161.

It is not an unprimeable number, because it can be changed into a prime (229171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38191 + ... + 38196.

It is an arithmetic number, because the mean of its divisors is an integer number (76388).

2²²⁹¹⁶¹ is an apocalyptic number.

It is an amenable number.

229161 is a deficient number, since it is larger than the sum of its proper divisors (76391).

229161 is an equidigital number, since it uses as much as digits as its factorization.

229161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76390.

The product of its digits is 216, while the sum is 21.

The square root of 229161 is about 478.7076352013. The cubic root of 229161 is about 61.1946661164.

The spelling of 229161 in words is "two hundred twenty-nine thousand, one hundred sixty-one".