71700143 has 2 divisors, whose sum is σ = 71700144. Its totient is φ = 71700142.

The previous prime is 71700133. The next prime is 71700197. The reversal of 71700143 is 34100717.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71700143 - 2⁴ = 71700127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71700133) 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, 35850071 + 35850072.

It is an arithmetic number, because the mean of its divisors is an integer number (35850072).

Almost surely, 2^71700143 is an apocalyptic number.

71700143 is a deficient number, since it is larger than the sum of its proper divisors (1).

71700143 is an equidigital number, since it uses as much as digits as its factorization.

71700143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 71700143 is about 8467.5936959682. The cubic root of 71700143 is about 415.4384353702.

The spelling of 71700143 in words is "seventy-one million, seven hundred thousand, one hundred forty-three".