194165497 has 2 divisors, whose sum is σ = 194165498. Its totient is φ = 194165496.

The previous prime is 194165479. The next prime is 194165513. The reversal of 194165497 is 794561491.

Together with previous prime (194165479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166823056 + 27342441 = 12916^2 + 5229^2 .

It is a cyclic number.

It is not a de Polignac number, because 194165497 - 2¹¹ = 194163449 is a prime.

It is not a weakly prime, because it can be changed into another prime (194165897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97082748 + 97082749.

It is an arithmetic number, because the mean of its divisors is an integer number (97082749).

Almost surely, 2^194165497 is an apocalyptic number.

It is an amenable number.

194165497 is a deficient number, since it is larger than the sum of its proper divisors (1).

194165497 is an equidigital number, since it uses as much as digits as its factorization.

194165497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 194165497 is about 13934.3280067609. The cubic root of 194165497 is about 579.0606047787.

The spelling of 194165497 in words is "one hundred ninety-four million, one hundred sixty-five thousand, four hundred ninety-seven".