71286107 has 4 divisors (see below), whose sum is σ = 71451936. Its totient is φ = 71120280.

The previous prime is 71286091. The next prime is 71286133. The reversal of 71286107 is 70168217.

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 71286107 - 2⁴ = 71286091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71286707) 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, 82268 + ... + 83129.

It is an arithmetic number, because the mean of its divisors is an integer number (17862984).

Almost surely, 2^71286107 is an apocalyptic number.

71286107 is a deficient number, since it is larger than the sum of its proper divisors (165829).

71286107 is a wasteful number, since it uses less digits than its factorization.

71286107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165828.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 71286107 is about 8443.1100312622. The cubic root of 71286107 is about 414.6372346395.

The spelling of 71286107 in words is "seventy-one million, two hundred eighty-six thousand, one hundred seven".