172475297 has 2 divisors, whose sum is σ = 172475298. Its totient is φ = 172475296.

The previous prime is 172475269. The next prime is 172475299. The reversal of 172475297 is 792574271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147962896 + 24512401 = 12164^2 + 4951^2 .

It is an emirp because it is prime and its reverse (792574271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172475297 - 2²² = 168280993 is a prime.

Together with 172475299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172475299) 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, 86237648 + 86237649.

It is an arithmetic number, because the mean of its divisors is an integer number (86237649).

Almost surely, 2^172475297 is an apocalyptic number.

It is an amenable number.

172475297 is a deficient number, since it is larger than the sum of its proper divisors (1).

172475297 is an equidigital number, since it uses as much as digits as its factorization.

172475297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 172475297 is about 13132.9850757549. The cubic root of 172475297 is about 556.6415667903.

The spelling of 172475297 in words is "one hundred seventy-two million, four hundred seventy-five thousand, two hundred ninety-seven".