71051871 has 16 divisors (see below), whose sum is σ = 105102720. Its totient is φ = 42330720.

The previous prime is 71051843. The next prime is 71051873. The reversal of 71051871 is 17815017.

It is a happy number.

It is not a de Polignac number, because 71051871 - 2¹⁴ = 71035487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71051873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16300 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (6568920).

Almost surely, 2^71051871 is an apocalyptic number.

71051871 is a deficient number, since it is larger than the sum of its proper divisors (34050849).

71051871 is a wasteful number, since it uses less digits than its factorization.

71051871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36566.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 71051871 is about 8429.2271887760. The cubic root of 71051871 is about 414.1825899997.

Adding to 71051871 its reverse (17815017), we get a palindrome (88866888).

The spelling of 71051871 in words is "seventy-one million, fifty-one thousand, eight hundred seventy-one".