172319 has 8 divisors (see below), whose sum is σ = 199680. Its totient is φ = 145656.

The previous prime is 172313. The next prime is 172321. The reversal of 172319 is 913271.

172319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 172319 - 2¹⁶ = 106783 is a prime.

It is a super-2 number, since 2×172319² = 59387675522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172294 and 172303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172313) 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, 602 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (24960).

2¹⁷²³¹⁹ is an apocalyptic number.

172319 is a deficient number, since it is larger than the sum of its proper divisors (27361).

172319 is a wasteful number, since it uses less digits than its factorization.

172319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its digits is 378, while the sum is 23.

The square root of 172319 is about 415.1132375630. The cubic root of 172319 is about 55.6473373235.

The spelling of 172319 in words is "one hundred seventy-two thousand, three hundred nineteen".