172373065 has 8 divisors (see below), whose sum is σ = 206918208. Its totient is φ = 137851440.

The previous prime is 172373059. The next prime is 172373083. The reversal of 172373065 is 560373271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172373065 - 2³ = 172373057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172373065.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 25050 + ... + 31180.

It is an arithmetic number, because the mean of its divisors is an integer number (25864776).

Almost surely, 2^172373065 is an apocalyptic number.

It is an amenable number.

172373065 is a deficient number, since it is larger than the sum of its proper divisors (34545143).

172373065 is an equidigital number, since it uses as much as digits as its factorization.

172373065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11759.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 172373065 is about 13129.0923143986. The cubic root of 172373065 is about 556.5315648966.

It can be divided in two parts, 17237 and 3065, that added together give a palindrome (20302).

The spelling of 172373065 in words is "one hundred seventy-two million, three hundred seventy-three thousand, sixty-five".