71005151 has 8 divisors (see below), whose sum is σ = 81200160. Its totient is φ = 60823008.

The previous prime is 71005133. The next prime is 71005189. The reversal of 71005151 is 15150017.

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 71005151 - 2¹⁰ = 71004127 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 (71007151) 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, 17705 + ... + 21341.

It is an arithmetic number, because the mean of its divisors is an integer number (10150020).

Almost surely, 2^71005151 is an apocalyptic number.

71005151 is a deficient number, since it is larger than the sum of its proper divisors (10195009).

71005151 is a wasteful number, since it uses less digits than its factorization.

71005151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433.

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 71005151 is about 8426.4554232489. The cubic root of 71005151 is about 414.0917884805.

Adding to 71005151 its reverse (15150017), we get a palindrome (86155168).

The spelling of 71005151 in words is "seventy-one million, five thousand, one hundred fifty-one".