188229 has 4 divisors (see below), whose sum is σ = 250976. Its totient is φ = 125484.

The previous prime is 188197. The next prime is 188249. The reversal of 188229 is 922881.

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, and also an emirpimes, since its reverse is a distinct semiprime: 922881 = 3 ⋅307627.

It is not a de Polignac number, because 188229 - 2⁵ = 188197 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188196 and 188205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31369 + ... + 31374.

It is an arithmetic number, because the mean of its divisors is an integer number (62744).

2¹⁸⁸²²⁹ is an apocalyptic number.

It is an amenable number.

188229 is a deficient number, since it is larger than the sum of its proper divisors (62747).

188229 is an equidigital number, since it uses as much as digits as its factorization.

188229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62746.

The product of its digits is 2304, while the sum is 30.

The square root of 188229 is about 433.8536619645. The cubic root of 188229 is about 57.3097936837.

The spelling of 188229 in words is "one hundred eighty-eight thousand, two hundred twenty-nine".