71271142 has 8 divisors (see below), whose sum is σ = 106942536. Its totient is φ = 35623632.

The previous prime is 71271133. The next prime is 71271163. The reversal of 71271142 is 24117217.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8773 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (13367817).

Almost surely, 2^71271142 is an apocalyptic number.

71271142 is a deficient number, since it is larger than the sum of its proper divisors (35671394).

71271142 is a wasteful number, since it uses less digits than its factorization.

71271142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11942.

The product of its digits is 784, while the sum is 25.

The square root of 71271142 is about 8442.2237591763. The cubic root of 71271142 is about 414.6082178566.

Adding to 71271142 its reverse (24117217), we get a palindrome (95388359).

The spelling of 71271142 in words is "seventy-one million, two hundred seventy-one thousand, one hundred forty-two".