71567141 has 2 divisors, whose sum is σ = 71567142. Its totient is φ = 71567140.

The previous prime is 71567117. The next prime is 71567143. The reversal of 71567141 is 14176517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65044225 + 6522916 = 8065^2 + 2554^2 .

It is a cyclic number.

It is not a de Polignac number, because 71567141 - 2¹⁴ = 71550757 is a prime.

Together with 71567143, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71567098 and 71567107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71567143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35783570 + 35783571.

It is an arithmetic number, because the mean of its divisors is an integer number (35783571).

Almost surely, 2^71567141 is an apocalyptic number.

It is an amenable number.

71567141 is a deficient number, since it is larger than the sum of its proper divisors (1).

71567141 is an equidigital number, since it uses as much as digits as its factorization.

71567141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 32.

The square root of 71567141 is about 8459.7364616163. The cubic root of 71567141 is about 415.1814003502.

The spelling of 71567141 in words is "seventy-one million, five hundred sixty-seven thousand, one hundred forty-one".