194164231 has 2 divisors, whose sum is σ = 194164232. Its totient is φ = 194164230.

The previous prime is 194164199. The next prime is 194164247. The reversal of 194164231 is 132461491.

194164231 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 a cyclic number.

It is not a de Polignac number, because 194164231 - 2⁵ = 194164199 is a prime.

It is a super-2 number, since 2×194164231² = 75399497199642722, which contains 22 as substring.

It is equal to p_10773652 and since 194164231 and 10773652 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 194164193 and 194164202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194164631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97082115 + 97082116.

It is an arithmetic number, because the mean of its divisors is an integer number (97082116).

Almost surely, 2^194164231 is an apocalyptic number.

194164231 is a deficient number, since it is larger than the sum of its proper divisors (1).

194164231 is an equidigital number, since it uses as much as digits as its factorization.

194164231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 194164231 is about 13934.2825793078. The cubic root of 194164231 is about 579.0593462436.

The spelling of 194164231 in words is "one hundred ninety-four million, one hundred sixty-four thousand, two hundred thirty-one".