188742223 has 2 divisors, whose sum is σ = 188742224. Its totient is φ = 188742222.

The previous prime is 188742221. The next prime is 188742233. The reversal of 188742223 is 322247881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 188742223 - 2¹ = 188742221 is a prime.

Together with 188742221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188742221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94371111 + 94371112.

It is an arithmetic number, because the mean of its divisors is an integer number (94371112).

Almost surely, 2^188742223 is an apocalyptic number.

188742223 is a deficient number, since it is larger than the sum of its proper divisors (1).

188742223 is an equidigital number, since it uses as much as digits as its factorization.

188742223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 37.

The square root of 188742223 is about 13738.3486271094. The cubic root of 188742223 is about 573.6183315431.

The spelling of 188742223 in words is "one hundred eighty-eight million, seven hundred forty-two thousand, two hundred twenty-three".