71470143 has 12 divisors (see below), whose sum is σ = 103370800. Its totient is φ = 47583936.

The previous prime is 71470141. The next prime is 71470169. The reversal of 71470143 is 34107417.

It is not a de Polignac number, because 71470143 - 2¹ = 71470141 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 (71470141) 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, 2583 + ... + 12231.

Almost surely, 2^71470143 is an apocalyptic number.

71470143 is a deficient number, since it is larger than the sum of its proper divisors (31900657).

71470143 is a wasteful number, since it uses less digits than its factorization.

71470143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478 (or 10475 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 71470143 is about 8454.0015968771. The cubic root of 71470143 is about 414.9937445227.

Subtracting from 71470143 its sum of digits (27), we obtain a square (71470116 = 8454²).

The spelling of 71470143 in words is "seventy-one million, four hundred seventy thousand, one hundred forty-three".