189941193 has 24 divisors (see below), whose sum is σ = 306412288. Its totient is φ = 116884944.

The previous prime is 189941189. The next prime is 189941197. The reversal of 189941193 is 391149981.

It is an interprime number because it is at equal distance from previous prime (189941189) and next prime (189941197).

It is not a de Polignac number, because 189941193 - 2² = 189941189 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189941197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26905 + ... + 33222.

Almost surely, 2^189941193 is an apocalyptic number.

189941193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

189941193 is a deficient number, since it is larger than the sum of its proper divisors (116471095).

189941193 is an equidigital number, since it uses as much as digits as its factorization.

189941193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60155 (or 60143 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 189941193 is about 13781.9154329143. The cubic root of 189941193 is about 574.8303903022.

The spelling of 189941193 in words is "one hundred eighty-nine million, nine hundred forty-one thousand, one hundred ninety-three".