68015039 has 4 divisors (see below), whose sum is σ = 68617056. Its totient is φ = 67413024.

The previous prime is 68015033. The next prime is 68015053. The reversal of 68015039 is 93051086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68015039 - 2⁸ = 68014783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68014996 and 68015014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68015033) 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, 300839 + ... + 301064.

It is an arithmetic number, because the mean of its divisors is an integer number (17154264).

Almost surely, 2^68015039 is an apocalyptic number.

68015039 is a deficient number, since it is larger than the sum of its proper divisors (602017).

68015039 is a wasteful number, since it uses less digits than its factorization.

68015039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602016.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 68015039 is about 8247.1230741392. The cubic root of 68015039 is about 408.1955981752.

The spelling of 68015039 in words is "sixty-eight million, fifteen thousand, thirty-nine".