193243159 has 2 divisors, whose sum is σ = 193243160. Its totient is φ = 193243158.

The previous prime is 193243151. The next prime is 193243163. The reversal of 193243159 is 951342391.

It is a strong prime.

It is an emirp because it is prime and its reverse (951342391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193243159 - 2³ = 193243151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193243151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96621579 + 96621580.

It is an arithmetic number, because the mean of its divisors is an integer number (96621580).

Almost surely, 2^193243159 is an apocalyptic number.

193243159 is a deficient number, since it is larger than the sum of its proper divisors (1).

193243159 is an equidigital number, since it uses as much as digits as its factorization.

193243159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 193243159 is about 13901.1927186123. The cubic root of 193243159 is about 578.1422515582.

The spelling of 193243159 in words is "one hundred ninety-three million, two hundred forty-three thousand, one hundred fifty-nine".