71153871 has 4 divisors (see below), whose sum is σ = 94871832. Its totient is φ = 47435912.

The previous prime is 71153869. The next prime is 71153893. The reversal of 71153871 is 17835117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17835117 = 3 ⋅5945039.

It is a cyclic number.

It is not a de Polignac number, because 71153871 - 2¹ = 71153869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71153371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11858976 + ... + 11858981.

It is an arithmetic number, because the mean of its divisors is an integer number (23717958).

Almost surely, 2^71153871 is an apocalyptic number.

71153871 is a deficient number, since it is larger than the sum of its proper divisors (23717961).

71153871 is a wasteful number, since it uses less digits than its factorization.

71153871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23717960.

The product of its digits is 5880, while the sum is 33.

The square root of 71153871 is about 8435.2753956228. The cubic root of 71153871 is about 414.3806913946.

Adding to 71153871 its reverse (17835117), we get a palindrome (88988988).

The spelling of 71153871 in words is "seventy-one million, one hundred fifty-three thousand, eight hundred seventy-one".