229451 has 4 divisors (see below), whose sum is σ = 233400. Its totient is φ = 225504.

The previous prime is 229433. The next prime is 229459. The reversal of 229451 is 154922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 229451 - 2¹⁰ = 228427 is a prime.

It is a super-2 number, since 2×229451² = 105295522802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (58350).

2²²⁹⁴⁵¹ is an apocalyptic number.

229451 is a deficient number, since it is larger than the sum of its proper divisors (3949).

229451 is an equidigital number, since it uses as much as digits as its factorization.

229451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948.

The product of its digits is 720, while the sum is 23.

The square root of 229451 is about 479.0104382996. The cubic root of 229451 is about 61.2204688962.

Subtracting from 229451 its reverse (154922), we obtain a square (74529 = 273²).

The spelling of 229451 in words is "two hundred twenty-nine thousand, four hundred fifty-one".