172052173 has 4 divisors (see below), whose sum is σ = 172185120. Its totient is φ = 171919228.

The previous prime is 172052171. The next prime is 172052197. The reversal of 172052173 is 371250271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 172052173 - 2¹ = 172052171 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 (172052171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64513 + ... + 67126.

It is an arithmetic number, because the mean of its divisors is an integer number (43046280).

Almost surely, 2^172052173 is an apocalyptic number.

It is an amenable number.

172052173 is a deficient number, since it is larger than the sum of its proper divisors (132947).

172052173 is a wasteful number, since it uses less digits than its factorization.

172052173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132946.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 172052173 is about 13116.8659747670. The cubic root of 172052173 is about 556.1860015080.

It can be divided in two parts, 172052 and 173, that added together give a square (172225 = 415²).

The spelling of 172052173 in words is "one hundred seventy-two million, fifty-two thousand, one hundred seventy-three".