71131171 has 8 divisors (see below), whose sum is σ = 73710000. Its totient is φ = 68560800.

The previous prime is 71131133. The next prime is 71131189. The reversal of 71131171 is 17113117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71131171 - 2¹⁷ = 71000099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71131121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18580 + ... + 22078.

It is an arithmetic number, because the mean of its divisors is an integer number (9213750).

Almost surely, 2^71131171 is an apocalyptic number.

71131171 is a deficient number, since it is larger than the sum of its proper divisors (2578829).

71131171 is a wasteful number, since it uses less digits than its factorization.

71131171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229.

The product of its digits is 147, while the sum is 22.

The square root of 71131171 is about 8433.9297483439. The cubic root of 71131171 is about 414.3366205097.

Adding to 71131171 its reverse (17113117), we get a palindrome (88244288).

It can be divided in two parts, 7 and 1131171, that multiplied together give a palindrome (7918197).

The spelling of 71131171 in words is "seventy-one million, one hundred thirty-one thousand, one hundred seventy-one".