143287 has 2 divisors, whose sum is σ = 143288. Its totient is φ = 143286.

The previous prime is 143281. The next prime is 143291. The reversal of 143287 is 782341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143287 - 2⁷ = 143159 is a prime.

It is an Ulam number.

143287 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71643 + 71644.

It is an arithmetic number, because the mean of its divisors is an integer number (71644).

2¹⁴³²⁸⁷ is an apocalyptic number.

143287 is a deficient number, since it is larger than the sum of its proper divisors (1).

143287 is an equidigital number, since it uses as much as digits as its factorization.

143287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 143287 is about 378.5326934361. The cubic root of 143287 is about 52.3281759785.

It can be divided in two parts, 143 and 287, that multiplied together give a triangular number (41041 = T₂₈₆).

The spelling of 143287 in words is "one hundred forty-three thousand, two hundred eighty-seven".