71354143 has 12 divisors (see below), whose sum is σ = 84059040. Its totient is φ = 60383232.

The previous prime is 71354141. The next prime is 71354147. The reversal of 71354143 is 34145317.

It is not a de Polignac number, because 71354143 - 2¹ = 71354141 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 (71354141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5346 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (7004920).

Almost surely, 2^71354143 is an apocalyptic number.

71354143 is a deficient number, since it is larger than the sum of its proper divisors (12704897).

71354143 is a wasteful number, since it uses less digits than its factorization.

71354143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18526 (or 18519 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 71354143 is about 8447.1381544284. The cubic root of 71354143 is about 414.7691036676.

The spelling of 71354143 in words is "seventy-one million, three hundred fifty-four thousand, one hundred forty-three".