188348231 has 2 divisors, whose sum is σ = 188348232. Its totient is φ = 188348230.

The previous prime is 188348227. The next prime is 188348233. The reversal of 188348231 is 132843881.

It is a strong prime.

It is an emirp because it is prime and its reverse (132843881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188348231 - 2² = 188348227 is a prime.

It is a super-2 number, since 2×188348231² = 70950112241658722, which contains 22 as substring.

Together with 188348233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188348233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94174115 + 94174116.

It is an arithmetic number, because the mean of its divisors is an integer number (94174116).

Almost surely, 2^188348231 is an apocalyptic number.

188348231 is a deficient number, since it is larger than the sum of its proper divisors (1).

188348231 is an equidigital number, since it uses as much as digits as its factorization.

188348231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 38.

The square root of 188348231 is about 13724.0020037888. The cubic root of 188348231 is about 573.2189182254.

The spelling of 188348231 in words is "one hundred eighty-eight million, three hundred forty-eight thousand, two hundred thirty-one".