172322243 has 2 divisors, whose sum is σ = 172322244. Its totient is φ = 172322242.

The previous prime is 172322231. The next prime is 172322287. The reversal of 172322243 is 342223271.

It is a happy number.

172322243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172322243 - 2⁶ = 172322179 is a prime.

It is not a weakly prime, because it can be changed into another prime (172322203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86161121 + 86161122.

It is an arithmetic number, because the mean of its divisors is an integer number (86161122).

Almost surely, 2^172322243 is an apocalyptic number.

172322243 is a deficient number, since it is larger than the sum of its proper divisors (1).

172322243 is an equidigital number, since it uses as much as digits as its factorization.

172322243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 26.

The square root of 172322243 is about 13127.1566989962. The cubic root of 172322243 is about 556.4768641088.

The spelling of 172322243 in words is "one hundred seventy-two million, three hundred twenty-two thousand, two hundred forty-three".