68171035 has 4 divisors (see below), whose sum is σ = 81805248. Its totient is φ = 54536824.

The previous prime is 68171029. The next prime is 68171053. The reversal of 68171035 is 53017186.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68171035 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68170988 and 68171006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6817099 + ... + 6817108.

It is an arithmetic number, because the mean of its divisors is an integer number (20451312).

Almost surely, 2^68171035 is an apocalyptic number.

68171035 is a deficient number, since it is larger than the sum of its proper divisors (13634213).

68171035 is a wasteful number, since it uses less digits than its factorization.

68171035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634212.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 68171035 is about 8256.5752585439. The cubic root of 68171035 is about 408.5074324467.

The spelling of 68171035 in words is "sixty-eight million, one hundred seventy-one thousand, thirty-five".