172224543 has 8 divisors (see below), whose sum is σ = 231665328. Its totient is φ = 113800064.

The previous prime is 172224541. The next prime is 172224553. The reversal of 172224543 is 345422271.

172224543 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 172224543 - 2¹ = 172224541 is a prime.

It is a super-2 number, since 2×172224543² = 59322586423117698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172224543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172224541) 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, 253680 + ... + 254357.

It is an arithmetic number, because the mean of its divisors is an integer number (28958166).

Almost surely, 2^172224543 is an apocalyptic number.

172224543 is a deficient number, since it is larger than the sum of its proper divisors (59440785).

172224543 is a wasteful number, since it uses less digits than its factorization.

172224543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508153.

The product of its digits is 13440, while the sum is 30.

The square root of 172224543 is about 13123.4348781102. The cubic root of 172224543 is about 556.3716773248.

The spelling of 172224543 in words is "one hundred seventy-two million, two hundred twenty-four thousand, five hundred forty-three".