159743 has 4 divisors (see below), whose sum is σ = 164928. Its totient is φ = 154560.

The previous prime is 159739. The next prime is 159763. The reversal of 159743 is 347951.

159743 = 17² + 18² + ... + 78².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 159743 - 2² = 159739 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2546 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (41232).

2¹⁵⁹⁷⁴³ is an apocalyptic number.

159743 is a deficient number, since it is larger than the sum of its proper divisors (5185).

159743 is an equidigital number, since it uses as much as digits as its factorization.

159743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184.

The product of its digits is 3780, while the sum is 29.

The square root of 159743 is about 399.6786208943. The cubic root of 159743 is about 54.2592698665.

The spelling of 159743 in words is "one hundred fifty-nine thousand, seven hundred forty-three".