143687 has 2 divisors, whose sum is σ = 143688. Its totient is φ = 143686.

The previous prime is 143677. The next prime is 143699. The reversal of 143687 is 786341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143687 - 2¹² = 139591 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143687.

It is not a weakly prime, because it can be changed into another prime (143617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71843 + 71844.

It is an arithmetic number, because the mean of its divisors is an integer number (71844).

2¹⁴³⁶⁸⁷ is an apocalyptic number.

143687 is a deficient number, since it is larger than the sum of its proper divisors (1).

143687 is an equidigital number, since it uses as much as digits as its factorization.

143687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 143687 is about 379.0606811580. The cubic root of 143687 is about 52.3768238514.

It can be divided in two parts, 14368 and 7, that multiplied together give a triangular number (100576 = T₄₄₈).

The spelling of 143687 in words is "one hundred forty-three thousand, six hundred eighty-seven".