159745 has 8 divisors (see below), whose sum is σ = 196416. Its totient is φ = 124656.

The previous prime is 159739. The next prime is 159763. The reversal of 159745 is 547951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159745 - 2³ = 159737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157 + ... + 586.

It is an arithmetic number, because the mean of its divisors is an integer number (24552).

It is a Proth number, since it is equal to 39 ⋅ 2¹² + 1 and 39 < 2¹².

2¹⁵⁹⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

159745 is a deficient number, since it is larger than the sum of its proper divisors (36671).

159745 is an equidigital number, since it uses as much as digits as its factorization.

159745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its digits is 6300, while the sum is 31.

The square root of 159745 is about 399.6811228967. The cubic root of 159745 is about 54.2594963095.

The spelling of 159745 in words is "one hundred fifty-nine thousand, seven hundred forty-five".