189960005 has 32 divisors (see below), whose sum is σ = 250214400. Its totient is φ = 138277440.

The previous prime is 189959993. The next prime is 189960053. The reversal of 189960005 is 500069981.

189960005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189960005 - 2¹⁰ = 189958981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994460 + ... + 994650.

It is an arithmetic number, because the mean of its divisors is an integer number (7819200).

Almost surely, 2^189960005 is an apocalyptic number.

It is an amenable number.

189960005 is a deficient number, since it is larger than the sum of its proper divisors (60254395).

189960005 is an equidigital number, since it uses as much as digits as its factorization.

189960005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 189960005 is about 13782.5979046042. The cubic root of 189960005 is about 574.8493669693.

The spelling of 189960005 in words is "one hundred eighty-nine million, nine hundred sixty thousand, five".