71715142 has 8 divisors (see below), whose sum is σ = 110074536. Its totient is φ = 35023632.

The previous prime is 71715113. The next prime is 71715179. The reversal of 71715142 is 24151717.

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

It is a self number, because there is not a number n which added to its sum of digits gives 71715142.

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, 416863 + ... + 417034.

It is an arithmetic number, because the mean of its divisors is an integer number (13759317).

Almost surely, 2^71715142 is an apocalyptic number.

71715142 is a deficient number, since it is larger than the sum of its proper divisors (38359394).

71715142 is a wasteful number, since it uses less digits than its factorization.

71715142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833942.

The product of its digits is 1960, while the sum is 28.

The square root of 71715142 is about 8468.4793203975. The cubic root of 71715142 is about 415.4674019635.

Adding to 71715142 its reverse (24151717), we get a palindrome (95866859).

The spelling of 71715142 in words is "seventy-one million, seven hundred fifteen thousand, one hundred forty-two".