71851371 has 8 divisors (see below), whose sum is σ = 95841600. Its totient is φ = 47881032.

The previous prime is 71851343. The next prime is 71851399. The reversal of 71851371 is 17315817.

It is an interprime number because it is at equal distance from previous prime (71851343) and next prime (71851399).

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

It is not a de Polignac number, because 71851371 - 2⁷ = 71851243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71851271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9376 + ... + 15218.

It is an arithmetic number, because the mean of its divisors is an integer number (11980200).

Almost surely, 2^71851371 is an apocalyptic number.

71851371 is a deficient number, since it is larger than the sum of its proper divisors (23990229).

71851371 is a wasteful number, since it uses less digits than its factorization.

71851371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945.

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

The square root of 71851371 is about 8476.5188019611. The cubic root of 71851371 is about 415.7303074293.

The spelling of 71851371 in words is "seventy-one million, eight hundred fifty-one thousand, three hundred seventy-one".