193730231 has 2 divisors, whose sum is σ = 193730232. Its totient is φ = 193730230.

The previous prime is 193730189. The next prime is 193730239. The reversal of 193730231 is 132037391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193730231 - 2⁶ = 193730167 is a prime.

It is a super-2 number, since 2×193730231² = 75062804806626722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 193730194 and 193730203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193730239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96865115 + 96865116.

It is an arithmetic number, because the mean of its divisors is an integer number (96865116).

Almost surely, 2^193730231 is an apocalyptic number.

193730231 is a deficient number, since it is larger than the sum of its proper divisors (1).

193730231 is an equidigital number, since it uses as much as digits as its factorization.

193730231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 193730231 is about 13918.7007655169. The cubic root of 193730231 is about 578.6275824842.

The spelling of 193730231 in words is "one hundred ninety-three million, seven hundred thirty thousand, two hundred thirty-one".