68313173 has 4 divisors (see below), whose sum is σ = 68851200. Its totient is φ = 67775148.

The previous prime is 68313169. The next prime is 68313199. The reversal of 68313173 is 37131386.

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: 37131386 = 2 ⋅18565693.

It is a cyclic number.

It is not a de Polignac number, because 68313173 - 2² = 68313169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68313103) 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, 268823 + ... + 269076.

It is an arithmetic number, because the mean of its divisors is an integer number (17212800).

Almost surely, 2^68313173 is an apocalyptic number.

It is an amenable number.

68313173 is a deficient number, since it is larger than the sum of its proper divisors (538027).

68313173 is a wasteful number, since it uses less digits than its factorization.

68313173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538026.

The product of its digits is 9072, while the sum is 32.

The square root of 68313173 is about 8265.1783404836. The cubic root of 68313173 is about 408.7911507978.

It can be divided in two parts, 68313 and 173, that added together give a palindrome (68486).

The spelling of 68313173 in words is "sixty-eight million, three hundred thirteen thousand, one hundred seventy-three".