188980169 has 4 divisors (see below), whose sum is σ = 215977344. Its totient is φ = 161982996.

The previous prime is 188980163. The next prime is 188980219. The reversal of 188980169 is 961089881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961089881 = 59 ⋅16289659.

It is not a de Polignac number, because 188980169 - 2⁸ = 188979913 is a prime.

It is a super-2 number, since 2×188980169² = 71427008550537122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188980163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13498577 + ... + 13498590.

It is an arithmetic number, because the mean of its divisors is an integer number (53994336).

Almost surely, 2^188980169 is an apocalyptic number.

It is an amenable number.

188980169 is a deficient number, since it is larger than the sum of its proper divisors (26997175).

188980169 is an equidigital number, since it uses as much as digits as its factorization.

188980169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26997174.

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 188980169 is about 13747.0058194503. The cubic root of 188980169 is about 573.8592825221.

The spelling of 188980169 in words is "one hundred eighty-eight million, nine hundred eighty thousand, one hundred sixty-nine".