172273543 has 8 divisors (see below), whose sum is σ = 191923200. Its totient is φ = 153537888.

The previous prime is 172273511. The next prime is 172273547. The reversal of 172273543 is 345372271.

172273543 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 a cyclic number.

It is not a de Polignac number, because 172273543 - 2⁵ = 172273511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172273499 and 172273508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172273547) 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, 228103 + ... + 228856.

It is an arithmetic number, because the mean of its divisors is an integer number (23990400).

Almost surely, 2^172273543 is an apocalyptic number.

172273543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

172273543 is a deficient number, since it is larger than the sum of its proper divisors (19649657).

172273543 is a wasteful number, since it uses less digits than its factorization.

172273543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457001.

The product of its digits is 35280, while the sum is 34.

The square root of 172273543 is about 13125.3016346292. The cubic root of 172273543 is about 556.4244371824.

The spelling of 172273543 in words is "one hundred seventy-two million, two hundred seventy-three thousand, five hundred forty-three".