195354169 has 2 divisors, whose sum is σ = 195354170. Its totient is φ = 195354168.

The previous prime is 195354167. The next prime is 195354223. The reversal of 195354169 is 961453591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152843769 + 42510400 = 12363^2 + 6520^2 .

It is a cyclic number.

It is not a de Polignac number, because 195354169 - 2¹ = 195354167 is a prime.

It is a super-2 number, since 2×195354169² = 76326502691361122, which contains 22 as substring.

Together with 195354167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (195354161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97677084 + 97677085.

It is an arithmetic number, because the mean of its divisors is an integer number (97677085).

Almost surely, 2^195354169 is an apocalyptic number.

It is an amenable number.

195354169 is a deficient number, since it is larger than the sum of its proper divisors (1).

195354169 is an equidigital number, since it uses as much as digits as its factorization.

195354169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 43.

The square root of 195354169 is about 13976.9155753335. The cubic root of 195354169 is about 580.2398621456.

The spelling of 195354169 in words is "one hundred ninety-five million, three hundred fifty-four thousand, one hundred sixty-nine".