71424143 has 8 divisors (see below), whose sum is σ = 81679488. Its totient is φ = 61181784.

The previous prime is 71424139. The next prime is 71424151. The reversal of 71424143 is 34142417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71424143 - 2² = 71424139 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 (71424163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16880 + ... + 20682.

It is an arithmetic number, because the mean of its divisors is an integer number (10209936).

Almost surely, 2^71424143 is an apocalyptic number.

71424143 is a deficient number, since it is larger than the sum of its proper divisors (10255345).

71424143 is a wasteful number, since it uses less digits than its factorization.

71424143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493.

The product of its digits is 2688, while the sum is 26.

The square root of 71424143 is about 8451.2805538569. The cubic root of 71424143 is about 414.9046919083.

It can be divided in two parts, 7142414 and 3, that added together give a palindrome (7142417).

The spelling of 71424143 in words is "seventy-one million, four hundred twenty-four thousand, one hundred forty-three".