172273443 has 16 divisors (see below), whose sum is σ = 236954016. Its totient is φ = 111248640.

The previous prime is 172273429. The next prime is 172273457. The reversal of 172273443 is 344372271.

It is an interprime number because it is at equal distance from previous prime (172273429) and next prime (172273457).

It is not a de Polignac number, because 172273443 - 2⁶ = 172273379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172273043) 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 15 ways as a sum of consecutive naturals, for example, 22533 + ... + 29193.

It is an arithmetic number, because the mean of its divisors is an integer number (14809626).

Almost surely, 2^172273443 is an apocalyptic number.

172273443 is a deficient number, since it is larger than the sum of its proper divisors (64680573).

172273443 is a wasteful number, since it uses less digits than its factorization.

172273443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934.

The product of its digits is 28224, while the sum is 33.

The square root of 172273443 is about 13125.2978251924. The cubic root of 172273443 is about 556.4243295194.

The spelling of 172273443 in words is "one hundred seventy-two million, two hundred seventy-three thousand, four hundred forty-three".