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143879 is a prime number
BaseRepresentation
bin100011001000000111
321022100212
4203020013
514101004
63030035
71136321
oct431007
9238325
10143879
119910a
126b31b
1350648
143a611
152c96e
hex23207

143879 has 2 divisors, whose sum is σ = 143880. Its totient is φ = 143878.

The previous prime is 143873. The next prime is 143881. The reversal of 143879 is 978341.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143879 is a prime.

Together with 143881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71939 + 71940.

It is an arithmetic number, because the mean of its divisors is an integer number (71940).

2143879 is an apocalyptic number.

143879 is a deficient number, since it is larger than the sum of its proper divisors (1).

143879 is an equidigital number, since it uses as much as digits as its factorization.

143879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 143879 is about 379.3138542157. The cubic root of 143879 is about 52.4001427652.

The spelling of 143879 in words is "one hundred forty-three thousand, eight hundred seventy-nine".