188341973 has 2 divisors, whose sum is σ = 188341974. Its totient is φ = 188341972.

The previous prime is 188341943. The next prime is 188341999. The reversal of 188341973 is 379143881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143089444 + 45252529 = 11962^2 + 6727^2 .

It is an emirp because it is prime and its reverse (379143881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188341973 - 2⁸ = 188341717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188341943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94170986 + 94170987.

It is an arithmetic number, because the mean of its divisors is an integer number (94170987).

Almost surely, 2^188341973 is an apocalyptic number.

It is an amenable number.

188341973 is a deficient number, since it is larger than the sum of its proper divisors (1).

188341973 is an equidigital number, since it uses as much as digits as its factorization.

188341973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 188341973 is about 13723.7740071746. The cubic root of 188341973 is about 573.2125696237.

The spelling of 188341973 in words is "one hundred eighty-eight million, three hundred forty-one thousand, nine hundred seventy-three".