172442353 has 2 divisors, whose sum is σ = 172442354. Its totient is φ = 172442352.

The previous prime is 172442321. The next prime is 172442359. The reversal of 172442353 is 353244271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172344384 + 97969 = 13128^2 + 313^2 .

It is an emirp because it is prime and its reverse (353244271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172442353 - 2⁵ = 172442321 is a prime.

It is not a weakly prime, because it can be changed into another prime (172442359) 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 as a sum of consecutive naturals, namely, 86221176 + 86221177.

It is an arithmetic number, because the mean of its divisors is an integer number (86221177).

Almost surely, 2^172442353 is an apocalyptic number.

It is an amenable number.

172442353 is a deficient number, since it is larger than the sum of its proper divisors (1).

172442353 is an equidigital number, since it uses as much as digits as its factorization.

172442353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 172442353 is about 13131.7307693997. The cubic root of 172442353 is about 556.6061237099.

The spelling of 172442353 in words is "one hundred seventy-two million, four hundred forty-two thousand, three hundred fifty-three".