71373143 has 2 divisors, whose sum is σ = 71373144. Its totient is φ = 71373142.

The previous prime is 71373131. The next prime is 71373151. The reversal of 71373143 is 34137317.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71373143 - 2⁶ = 71373079 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71373193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35686571 + 35686572.

It is an arithmetic number, because the mean of its divisors is an integer number (35686572).

Almost surely, 2^71373143 is an apocalyptic number.

71373143 is a deficient number, since it is larger than the sum of its proper divisors (1).

71373143 is an equidigital number, since it uses as much as digits as its factorization.

71373143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 29.

The square root of 71373143 is about 8448.2627208202. The cubic root of 71373143 is about 414.8059149550.

It can be divided in two parts, 7137314 and 3, that added together give a palindrome (7137317).

The spelling of 71373143 in words is "seventy-one million, three hundred seventy-three thousand, one hundred forty-three".