68175445 has 12 divisors (see below), whose sum is σ = 88588836. Its totient is φ = 50344320.

The previous prime is 68175421. The next prime is 68175461. The reversal of 68175445 is 54457186.

It can be written as a sum of positive squares in 6 ways, for example, as 508369 + 67667076 = 713^2 + 8226^2 .

It is not a de Polignac number, because 68175445 - 2⁹ = 68174933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68175398 and 68175407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39496 + ... + 41185.

It is an arithmetic number, because the mean of its divisors is an integer number (7382403).

Almost surely, 2^68175445 is an apocalyptic number.

68175445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68175445 is a deficient number, since it is larger than the sum of its proper divisors (20413391).

68175445 is a wasteful number, since it uses less digits than its factorization.

68175445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80712 (or 80699 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 68175445 is about 8256.8423141053. The cubic root of 68175445 is about 408.5162410701.

The spelling of 68175445 in words is "sixty-eight million, one hundred seventy-five thousand, four hundred forty-five".