71343751 has 8 divisors (see below), whose sum is σ = 73124480. Its totient is φ = 69568632.

The previous prime is 71343743. The next prime is 71343787. The reversal of 71343751 is 15734317.

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 71343751 - 2³ = 71343743 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 (71313751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37030 + ... + 38908.

It is an arithmetic number, because the mean of its divisors is an integer number (9140560).

Almost surely, 2^71343751 is an apocalyptic number.

71343751 is a deficient number, since it is larger than the sum of its proper divisors (1780729).

71343751 is a wasteful number, since it uses less digits than its factorization.

71343751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805.

The product of its digits is 8820, while the sum is 31.

The square root of 71343751 is about 8446.5230124590. The cubic root of 71343751 is about 414.7489670663.

The spelling of 71343751 in words is "seventy-one million, three hundred forty-three thousand, seven hundred fifty-one".