68015071 has 4 divisors (see below), whose sum is σ = 70972272. Its totient is φ = 65057872.

The previous prime is 68015053. The next prime is 68015083. The reversal of 68015071 is 17051086.

It is a happy number.

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 68015071 - 2⁹ = 68014559 is a prime.

It is a super-3 number, since 3×68015071³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68015971) 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, 1478566 + ... + 1478611.

It is an arithmetic number, because the mean of its divisors is an integer number (17743068).

Almost surely, 2^68015071 is an apocalyptic number.

68015071 is a deficient number, since it is larger than the sum of its proper divisors (2957201).

68015071 is a wasteful number, since it uses less digits than its factorization.

68015071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957200.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 68015071 is about 8247.1250142095. The cubic root of 68015071 is about 408.1956621918.

It can be divided in two parts, 680 and 15071, that added together give a palindrome (15751).

The spelling of 68015071 in words is "sixty-eight million, fifteen thousand, seventy-one".