172265 has 8 divisors (see below), whose sum is σ = 209088. Its totient is φ = 136240.

The previous prime is 172259. The next prime is 172279. The reversal of 172265 is 562271.

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

It is not a de Polignac number, because 172265 - 2⁸ = 172009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524 + ... + 786.

It is an arithmetic number, because the mean of its divisors is an integer number (26136).

2¹⁷²²⁶⁵ is an apocalyptic number.

It is an amenable number.

172265 is a deficient number, since it is larger than the sum of its proper divisors (36823).

172265 is a wasteful number, since it uses less digits than its factorization.

172265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

The product of its digits is 840, while the sum is 23.

The square root of 172265 is about 415.0481899732. The cubic root of 172265 is about 55.6415239383.

The spelling of 172265 in words is "one hundred seventy-two thousand, two hundred sixty-five".