188969107 has 2 divisors, whose sum is σ = 188969108. Its totient is φ = 188969106.

The previous prime is 188969083. The next prime is 188969147. The reversal of 188969107 is 701969881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 188969107 - 2¹¹ = 188967059 is a prime.

It is not a weakly prime, because it can be changed into another prime (188969147) 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, 94484553 + 94484554.

It is an arithmetic number, because the mean of its divisors is an integer number (94484554).

Almost surely, 2^188969107 is an apocalyptic number.

188969107 is a deficient number, since it is larger than the sum of its proper divisors (1).

188969107 is an equidigital number, since it uses as much as digits as its factorization.

188969107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 49.

The square root of 188969107 is about 13746.6034714034. The cubic root of 188969107 is about 573.8480853062.

The spelling of 188969107 in words is "one hundred eighty-eight million, nine hundred sixty-nine thousand, one hundred seven".