195117529 has 4 divisors (see below), whose sum is σ = 195145984. Its totient is φ = 195089076.

The previous prime is 195117523. The next prime is 195117541. The reversal of 195117529 is 925711591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 195117529 - 2¹³ = 195109337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195117491 and 195117500.

It is not an unprimeable number, because it can be changed into a prime (195117523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064 + ... + 19990.

It is an arithmetic number, because the mean of its divisors is an integer number (48786496).

Almost surely, 2^195117529 is an apocalyptic number.

It is an amenable number.

195117529 is a deficient number, since it is larger than the sum of its proper divisors (28455).

195117529 is a wasteful number, since it uses less digits than its factorization.

195117529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28454.

The product of its digits is 28350, while the sum is 40.

The square root of 195117529 is about 13968.4476231255. The cubic root of 195117529 is about 580.0054785452.

The spelling of 195117529 in words is "one hundred ninety-five million, one hundred seventeen thousand, five hundred twenty-nine".