64143 has 6 divisors (see below), whose sum is σ = 92664. Its totient is φ = 42756.

The previous prime is 64123. The next prime is 64151. The reversal of 64143 is 34146.

It is a de Polignac number, because none of the positive numbers 2^k-64143 is a prime.

It is a super-2 number, since 2×64143² = 8228648898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64123) 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 5 ways as a sum of consecutive naturals, for example, 3555 + ... + 3572.

It is an arithmetic number, because the mean of its divisors is an integer number (15444).

2⁶⁴¹⁴³ is an apocalyptic number.

64143 is a deficient number, since it is larger than the sum of its proper divisors (28521).

64143 is a wasteful number, since it uses less digits than its factorization.

64143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133 (or 7130 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 64143 is about 253.2646836809. The cubic root of 64143 is about 40.0297695056.

Adding to 64143 its reverse (34146), we get a palindrome (98289).

The spelling of 64143 in words is "sixty-four thousand, one hundred forty-three".