67115065 has 8 divisors (see below), whose sum is σ = 85275720. Its totient is φ = 50533632.

The previous prime is 67115063. The next prime is 67115071. The reversal of 67115065 is 56051176.

It can be written as a sum of positive squares in 4 ways, for example, as 20548089 + 46566976 = 4533^2 + 6824^2 .

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 67115065 - 2¹ = 67115063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67115063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394710 + ... + 394879.

It is an arithmetic number, because the mean of its divisors is an integer number (10659465).

Almost surely, 2^67115065 is an apocalyptic number.

It is an amenable number.

67115065 is a deficient number, since it is larger than the sum of its proper divisors (18160655).

67115065 is a wasteful number, since it uses less digits than its factorization.

67115065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789611.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 67115065 is about 8192.3784702612. The cubic root of 67115065 is about 406.3871855427.

The spelling of 67115065 in words is "sixty-seven million, one hundred fifteen thousand, sixty-five".