188160001 has 2 divisors, whose sum is σ = 188160002. Its totient is φ = 188160000.

The previous prime is 188159999. The next prime is 188160061. The reversal of 188160001 is 100061881.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173712400 + 14447601 = 13180^2 + 3801^2 .It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 100091881 and 188190001.

It is a cyclic number.

It is not a de Polignac number, because 188160001 - 2¹ = 188159999 is a prime.

Together with 188159999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (188160061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94080000 + 94080001.

It is an arithmetic number, because the mean of its divisors is an integer number (94080001).

Almost surely, 2^188160001 is an apocalyptic number.

It is an amenable number.

188160001 is a deficient number, since it is larger than the sum of its proper divisors (1).

188160001 is an equidigital number, since it uses as much as digits as its factorization.

188160001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 188160001 is about 13717.1425960365. The cubic root of 188160001 is about 573.0279015477.

The spelling of 188160001 in words is "one hundred eighty-eight million, one hundred sixty thousand, one".