188270897 has 2 divisors, whose sum is σ = 188270898. Its totient is φ = 188270896.

The previous prime is 188270891. The next prime is 188270923. The reversal of 188270897 is 798072881.

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., 100080016 + 88190881 = 10004^2 + 9391^2 .

It is a cyclic number.

It is not a de Polignac number, because 188270897 - 2⁴ = 188270881 is a prime.

It is not a weakly prime, because it can be changed into another prime (188270891) 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, 94135448 + 94135449.

It is an arithmetic number, because the mean of its divisors is an integer number (94135449).

Almost surely, 2^188270897 is an apocalyptic number.

It is an amenable number.

188270897 is a deficient number, since it is larger than the sum of its proper divisors (1).

188270897 is an equidigital number, since it uses as much as digits as its factorization.

188270897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 50.

The square root of 188270897 is about 13721.1842418940. The cubic root of 188270897 is about 573.1404547325.

The spelling of 188270897 in words is "one hundred eighty-eight million, two hundred seventy thousand, eight hundred ninety-seven".