188256349 has 2 divisors, whose sum is σ = 188256350. Its totient is φ = 188256348.

The previous prime is 188256347. The next prime is 188256401. The reversal of 188256349 is 943652881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161112249 + 27144100 = 12693^2 + 5210^2 .

It is a cyclic number.

It is not a de Polignac number, because 188256349 - 2¹ = 188256347 is a prime.

Together with 188256347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 188256299 and 188256308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188256347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94128174 + 94128175.

It is an arithmetic number, because the mean of its divisors is an integer number (94128175).

Almost surely, 2^188256349 is an apocalyptic number.

It is an amenable number.

188256349 is a deficient number, since it is larger than the sum of its proper divisors (1).

188256349 is an equidigital number, since it uses as much as digits as its factorization.

188256349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 46.

The square root of 188256349 is about 13720.6541024836. The cubic root of 188256349 is about 573.1256918523.

The spelling of 188256349 in words is "one hundred eighty-eight million, two hundred fifty-six thousand, three hundred forty-nine".