68745185 has 8 divisors (see below), whose sum is σ = 82558440. Its totient is φ = 54953344.

The previous prime is 68745181. The next prime is 68745191. The reversal of 68745185 is 58154786.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7639696 + 61105489 = 2764^2 + 7817^2 .

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 68745185 - 2² = 68745181 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68745181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2861 + ... + 12069.

It is an arithmetic number, because the mean of its divisors is an integer number (10319805).

Almost surely, 2^68745185 is an apocalyptic number.

It is an amenable number.

68745185 is a deficient number, since it is larger than the sum of its proper divisors (13813255).

68745185 is a wasteful number, since it uses less digits than its factorization.

68745185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707.

The product of its digits is 268800, while the sum is 44.

The square root of 68745185 is about 8291.2716153796. The cubic root of 68745185 is about 409.6510713633.

The spelling of 68745185 in words is "sixty-eight million, seven hundred forty-five thousand, one hundred eighty-five".