172022743 has 2 divisors, whose sum is σ = 172022744. Its totient is φ = 172022742.

The previous prime is 172022707. The next prime is 172022749. The reversal of 172022743 is 347220271.

It is a strong prime.

It is an emirp because it is prime and its reverse (347220271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172022743 - 2²⁵ = 138468311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172022749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86011371 + 86011372.

It is an arithmetic number, because the mean of its divisors is an integer number (86011372).

Almost surely, 2^172022743 is an apocalyptic number.

172022743 is a deficient number, since it is larger than the sum of its proper divisors (1).

172022743 is an equidigital number, since it uses as much as digits as its factorization.

172022743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 172022743 is about 13115.7440886897. The cubic root of 172022743 is about 556.1542873151.

The spelling of 172022743 in words is "one hundred seventy-two million, twenty-two thousand, seven hundred forty-three".