68015029 has 4 divisors (see below), whose sum is σ = 68133484. Its totient is φ = 67896576.

The previous prime is 68014951. The next prime is 68015033. The reversal of 68015029 is 92051086.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34398225 + 33616804 = 5865^2 + 5798^2 .

It is a cyclic number.

It is not a de Polignac number, because 68015029 - 2⁹ = 68014517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68015099) 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, 58362 + ... + 59515.

It is an arithmetic number, because the mean of its divisors is an integer number (17033371).

Almost surely, 2^68015029 is an apocalyptic number.

It is an amenable number.

68015029 is a deficient number, since it is larger than the sum of its proper divisors (118455).

68015029 is a wasteful number, since it uses less digits than its factorization.

68015029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118454.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 68015029 is about 8247.1224678672. The cubic root of 68015029 is about 408.1955781701.

The spelling of 68015029 in words is "sixty-eight million, fifteen thousand, twenty-nine".