71851343 has 2 divisors, whose sum is σ = 71851344. Its totient is φ = 71851342.

The previous prime is 71851327. The next prime is 71851399. The reversal of 71851343 is 34315817.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71851343 - 2⁴ = 71851327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71851313) 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 as a sum of consecutive naturals, namely, 35925671 + 35925672.

It is an arithmetic number, because the mean of its divisors is an integer number (35925672).

Almost surely, 2^71851343 is an apocalyptic number.

71851343 is a deficient number, since it is larger than the sum of its proper divisors (1).

71851343 is an equidigital number, since it uses as much as digits as its factorization.

71851343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 71851343 is about 8476.5171503395. The cubic root of 71851343 is about 415.7302534269.

The spelling of 71851343 in words is "seventy-one million, eight hundred fifty-one thousand, three hundred forty-three".