71140941 has 12 divisors (see below), whose sum is σ = 103162332. Its totient is φ = 47241216.

The previous prime is 71140931. The next prime is 71140957. The reversal of 71140941 is 14904117.

It can be written as a sum of positive squares in 2 ways, for example, as 54908100 + 16232841 = 7410^2 + 4029^2 .

It is not a de Polignac number, because 71140941 - 2⁷ = 71140813 is a prime.

It is a super-2 number, since 2×71140941² = 10122066972730962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71140931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13066 + ... + 17691.

It is an arithmetic number, because the mean of its divisors is an integer number (8596861).

Almost surely, 2^71140941 is an apocalyptic number.

It is an amenable number.

71140941 is a deficient number, since it is larger than the sum of its proper divisors (32021391).

71140941 is a wasteful number, since it uses less digits than its factorization.

71140941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31020 (or 31017 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 71140941 is about 8434.5089365060. The cubic root of 71140941 is about 414.3555896124.

The spelling of 71140941 in words is "seventy-one million, one hundred forty thousand, nine hundred forty-one".