171253134508 has 12 divisors (see below), whose sum is σ = 300303361512. Its totient is φ = 85452174080.

The previous prime is 171253134497. The next prime is 171253134517. The reversal of 171253134508 is 805431352171.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43596085 + ... + 43600012.

It is an arithmetic number, because the mean of its divisors is an integer number (25025280126).

Almost surely, 2^171253134508 is an apocalyptic number.

It is an amenable number.

171253134508 is a deficient number, since it is larger than the sum of its proper divisors (129050227004).

171253134508 is a wasteful number, since it uses less digits than its factorization.

171253134508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87196592 (or 87196590 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

Adding to 171253134508 its reverse (805431352171), we get a palindrome (976684486679).

The spelling of 171253134508 in words is "one hundred seventy-one billion, two hundred fifty-three million, one hundred thirty-four thousand, five hundred eight".