172455313 has 2 divisors, whose sum is σ = 172455314. Its totient is φ = 172455312.

The previous prime is 172455299. The next prime is 172455319. The reversal of 172455313 is 313554271.

It is a happy number.

172455313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99660289 + 72795024 = 9983^2 + 8532^2 .

It is an emirp because it is prime and its reverse (313554271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172455313 - 2⁹ = 172454801 is a prime.

It is not a weakly prime, because it can be changed into another prime (172455319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86227656 + 86227657.

It is an arithmetic number, because the mean of its divisors is an integer number (86227657).

Almost surely, 2^172455313 is an apocalyptic number.

It is an amenable number.

172455313 is a deficient number, since it is larger than the sum of its proper divisors (1).

172455313 is an equidigital number, since it uses as much as digits as its factorization.

172455313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 172455313 is about 13132.2242213572. The cubic root of 172455313 is about 556.6200673738.

The spelling of 172455313 in words is "one hundred seventy-two million, four hundred fifty-five thousand, three hundred thirteen".