172360313 has 2 divisors, whose sum is σ = 172360314. Its totient is φ = 172360312.

The previous prime is 172360277. The next prime is 172360333. The reversal of 172360313 is 313063271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157828969 + 14531344 = 12563^2 + 3812^2 .

It is an emirp because it is prime and its reverse (313063271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172360313 - 2⁶ = 172360249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (172360333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86180156 + 86180157.

It is an arithmetic number, because the mean of its divisors is an integer number (86180157).

Almost surely, 2^172360313 is an apocalyptic number.

It is an amenable number.

172360313 is a deficient number, since it is larger than the sum of its proper divisors (1).

172360313 is an equidigital number, since it uses as much as digits as its factorization.

172360313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 172360313 is about 13128.6066663603. The cubic root of 172360313 is about 556.5178406613.

The spelling of 172360313 in words is "one hundred seventy-two million, three hundred sixty thousand, three hundred thirteen".