71130171 has 16 divisors (see below), whose sum is σ = 108635904. Its totient is φ = 40553184.

The previous prime is 71130149. The next prime is 71130173. The reversal of 71130171 is 17103117.

It is not a de Polignac number, because 71130171 - 2⁶ = 71130107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (71130173) 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, 6181 + ... + 13433.

It is an arithmetic number, because the mean of its divisors is an integer number (6789744).

Almost surely, 2^71130171 is an apocalyptic number.

71130171 is a deficient number, since it is larger than the sum of its proper divisors (37505733).

71130171 is a wasteful number, since it uses less digits than its factorization.

71130171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7730.

The product of its (nonzero) digits is 147, while the sum is 21.

The square root of 71130171 is about 8433.8704637906. The cubic root of 71130171 is about 414.3346788454.

Adding to 71130171 its reverse (17103117), we get a palindrome (88233288).

It can be divided in two parts, 7 and 1130171, that multiplied together give a palindrome (7911197).

The spelling of 71130171 in words is "seventy-one million, one hundred thirty thousand, one hundred seventy-one".