188348065 has 4 divisors (see below), whose sum is σ = 226017684. Its totient is φ = 150678448.

The previous prime is 188348059. The next prime is 188348123. The reversal of 188348065 is 560843881.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81866304 + 106481761 = 9048^2 + 10319^2 .

It is a cyclic number.

It is not a de Polignac number, because 188348065 - 2⁹ = 188347553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18834802 + ... + 18834811.

It is an arithmetic number, because the mean of its divisors is an integer number (56504421).

Almost surely, 2^188348065 is an apocalyptic number.

It is an amenable number.

188348065 is a deficient number, since it is larger than the sum of its proper divisors (37669619).

188348065 is an equidigital number, since it uses as much as digits as its factorization.

188348065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37669618.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 188348065 is about 13723.9959559889. The cubic root of 188348065 is about 573.2187498239.

The spelling of 188348065 in words is "one hundred eighty-eight million, three hundred forty-eight thousand, sixty-five".