172068517 has 8 divisors (see below), whose sum is σ = 173852000. Its totient is φ = 170293104.

The previous prime is 172068511. The next prime is 172068521. The reversal of 172068517 is 715860271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172068517 - 2¹⁵ = 172035749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172068511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46738 + ... + 50284.

It is an arithmetic number, because the mean of its divisors is an integer number (21731500).

Almost surely, 2^172068517 is an apocalyptic number.

It is an amenable number.

172068517 is a deficient number, since it is larger than the sum of its proper divisors (1783483).

172068517 is a wasteful number, since it uses less digits than its factorization.

172068517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 172068517 is about 13117.4889746475. The cubic root of 172068517 is about 556.2036124764.

The spelling of 172068517 in words is "one hundred seventy-two million, sixty-eight thousand, five hundred seventeen".