188243073 has 12 divisors (see below), whose sum is σ = 272183808. Its totient is φ = 125367480.

The previous prime is 188243071. The next prime is 188243123. The reversal of 188243073 is 370342881.

It is not a de Polignac number, because 188243073 - 2¹ = 188243071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188243071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 865 + ... + 19422.

It is an arithmetic number, because the mean of its divisors is an integer number (22681984).

Almost surely, 2^188243073 is an apocalyptic number.

It is an amenable number.

188243073 is a deficient number, since it is larger than the sum of its proper divisors (83940735).

188243073 is a wasteful number, since it uses less digits than its factorization.

188243073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324 (or 21321 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 188243073 is about 13720.1702977769. The cubic root of 188243073 is about 573.1122190963.

The spelling of 188243073 in words is "one hundred eighty-eight million, two hundred forty-three thousand, seventy-three".