172485205 has 8 divisors (see below), whose sum is σ = 209476512. Its totient is φ = 136325328.

The previous prime is 172485191. The next prime is 172485251. The reversal of 172485205 is 502584271.

It is a happy number.

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 172485205 - 2²⁵ = 138930773 is a prime.

It is a super-2 number, since 2×172485205² = 59502291887784050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 207399 + ... + 208228.

It is an arithmetic number, because the mean of its divisors is an integer number (26184564).

Almost surely, 2^172485205 is an apocalyptic number.

It is an amenable number.

172485205 is a deficient number, since it is larger than the sum of its proper divisors (36991307).

172485205 is an equidigital number, since it uses as much as digits as its factorization.

172485205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415715.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 172485205 is about 13133.3622884622. The cubic root of 172485205 is about 556.6522255129.

The spelling of 172485205 in words is "one hundred seventy-two million, four hundred eighty-five thousand, two hundred five".