71041071 has 4 divisors (see below), whose sum is σ = 94721432. Its totient is φ = 47360712.

The previous prime is 71041063. The next prime is 71041127. The reversal of 71041071 is 17014017.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71041071 - 2³ = 71041063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71041021) 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, 11840176 + ... + 11840181.

It is an arithmetic number, because the mean of its divisors is an integer number (23680358).

Almost surely, 2^71041071 is an apocalyptic number.

71041071 is a deficient number, since it is larger than the sum of its proper divisors (23680361).

71041071 is a wasteful number, since it uses less digits than its factorization.

71041071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23680360.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 71041071 is about 8428.5865363061. The cubic root of 71041071 is about 414.1616034604.

Adding to 71041071 its reverse (17014017), we get a palindrome (88055088).

The spelling of 71041071 in words is "seventy-one million, forty-one thousand, seventy-one".