71112141 has 8 divisors (see below), whose sum is σ = 105351360. Its totient is φ = 47408076.

The previous prime is 71112131. The next prime is 71112161. The reversal of 71112141 is 14121117.

It is not a de Polignac number, because 71112141 - 2¹⁸ = 70849997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71112101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1316865 + ... + 1316918.

It is an arithmetic number, because the mean of its divisors is an integer number (13168920).

Almost surely, 2^71112141 is an apocalyptic number.

It is an amenable number.

71112141 is a deficient number, since it is larger than the sum of its proper divisors (34239219).

71112141 is a wasteful number, since it uses less digits than its factorization.

71112141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633792 (or 2633786 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 71112141 is about 8432.8014917938. The cubic root of 71112141 is about 414.2996675160.

Adding to 71112141 its reverse (14121117), we get a palindrome (85233258).

It can be divided in two parts, 71112 and 141, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 71112141 in words is "seventy-one million, one hundred twelve thousand, one hundred forty-one".