193274231 has 2 divisors, whose sum is σ = 193274232. Its totient is φ = 193274230.

The previous prime is 193274209. The next prime is 193274233. The reversal of 193274231 is 132472391.

193274231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (132472391) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193274231 is a prime.

It is a super-2 number, since 2×193274231² = 74709856737282722, which contains 22 as substring.

Together with 193274233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193274233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96637115 + 96637116.

It is an arithmetic number, because the mean of its divisors is an integer number (96637116).

Almost surely, 2^193274231 is an apocalyptic number.

193274231 is a deficient number, since it is larger than the sum of its proper divisors (1).

193274231 is an equidigital number, since it uses as much as digits as its factorization.

193274231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 193274231 is about 13902.3102756340. The cubic root of 193274231 is about 578.1732368264.

The spelling of 193274231 in words is "one hundred ninety-three million, two hundred seventy-four thousand, two hundred thirty-one".