229291 has 4 divisors (see below), whose sum is σ = 230832. Its totient is φ = 227752.

The previous prime is 229283. The next prime is 229309. The reversal of 229291 is 192922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192922 = 2 ⋅96461.

It is a cyclic number.

It is not a de Polignac number, because 229291 - 2³ = 229283 is a prime.

It is a Duffinian number.

229291 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (229261) 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, 520 + ... + 853.

It is an arithmetic number, because the mean of its divisors is an integer number (57708).

2²²⁹²⁹¹ is an apocalyptic number.

229291 is a deficient number, since it is larger than the sum of its proper divisors (1541).

229291 is a wasteful number, since it uses less digits than its factorization.

229291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its digits is 648, while the sum is 25.

The square root of 229291 is about 478.8433982003. The cubic root of 229291 is about 61.2062355701.

It can be divided in two parts, 22 and 9291, that multiplied together give a palindrome (204402).

The spelling of 229291 in words is "two hundred twenty-nine thousand, two hundred ninety-one".