193630105189 has 2 divisors, whose sum is σ = 193630105190. Its totient is φ = 193630105188.

The previous prime is 193630105171. The next prime is 193630105243. The reversal of 193630105189 is 981501036391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124455845089 + 69174260100 = 352783^2 + 263010^2 .

It is a cyclic number.

It is not a de Polignac number, because 193630105189 - 2¹⁹ = 193629580901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193630105169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96815052594 + 96815052595.

It is an arithmetic number, because the mean of its divisors is an integer number (96815052595).

Almost surely, 2^193630105189 is an apocalyptic number.

It is an amenable number.

193630105189 is a deficient number, since it is larger than the sum of its proper divisors (1).

193630105189 is an equidigital number, since it uses as much as digits as its factorization.

193630105189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 193630105189 in words is "one hundred ninety-three billion, six hundred thirty million, one hundred five thousand, one hundred eighty-nine".