68045185 has 8 divisors (see below), whose sum is σ = 87935400. Its totient is φ = 50248704.

The previous prime is 68045177. The next prime is 68045191. The reversal of 68045185 is 58154086.

It can be written as a sum of positive squares in 4 ways, for example, as 2483776 + 65561409 = 1576^2 + 8097^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68045185 - 2³ = 68045177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523360 + ... + 523489.

It is an arithmetic number, because the mean of its divisors is an integer number (10991925).

Almost surely, 2^68045185 is an apocalyptic number.

68045185 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68045185 is a deficient number, since it is larger than the sum of its proper divisors (19890215).

68045185 is a wasteful number, since it uses less digits than its factorization.

68045185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046867.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 68045185 is about 8248.9505393110. The cubic root of 68045185 is about 408.2558968342.

The spelling of 68045185 in words is "sixty-eight million, forty-five thousand, one hundred eighty-five".