172425313 has 4 divisors (see below), whose sum is σ = 176435248. Its totient is φ = 168415380.

The previous prime is 172425301. The next prime is 172425349. The reversal of 172425313 is 313524271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313524271 = 601 ⋅521671.

It is a cyclic number.

It is not a de Polignac number, because 172425313 - 2⁹ = 172424801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172425353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004903 + ... + 2004988.

It is an arithmetic number, because the mean of its divisors is an integer number (44108812).

Almost surely, 2^172425313 is an apocalyptic number.

It is an amenable number.

172425313 is a deficient number, since it is larger than the sum of its proper divisors (4009935).

172425313 is an equidigital number, since it uses as much as digits as its factorization.

172425313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009934.

The product of its digits is 5040, while the sum is 28.

The square root of 172425313 is about 13131.0819432368. The cubic root of 172425313 is about 556.5877893108.

Adding to 172425313 its reverse (313524271), we get a palindrome (485949584).

The spelling of 172425313 in words is "one hundred seventy-two million, four hundred twenty-five thousand, three hundred thirteen".