188969071 has 2 divisors, whose sum is σ = 188969072. Its totient is φ = 188969070.

The previous prime is 188969057. The next prime is 188969083. The reversal of 188969071 is 170969881.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188969071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188969371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94484535 + 94484536.

It is an arithmetic number, because the mean of its divisors is an integer number (94484536).

Almost surely, 2^188969071 is an apocalyptic number.

188969071 is a deficient number, since it is larger than the sum of its proper divisors (1).

188969071 is an equidigital number, since it uses as much as digits as its factorization.

188969071 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 188969071 is about 13746.6021619890. The cubic root of 188969071 is about 573.8480488655.

The spelling of 188969071 in words is "one hundred eighty-eight million, nine hundred sixty-nine thousand, seventy-one".