159975 has 30 divisors (see below), whose sum is σ = 300080. Its totient is φ = 84240.

The previous prime is 159937. The next prime is 159977. The reversal of 159975 is 579951.

It is a happy number.

159975 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 159975 - 2⁶ = 159911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159977) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1986 + ... + 2064.

2¹⁵⁹⁹⁷⁵ is an apocalyptic number.

159975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159975 is a deficient number, since it is larger than the sum of its proper divisors (140105).

159975 is an equidigital number, since it uses as much as digits as its factorization.

159975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 87 counting only the distinct ones).

The product of its digits is 14175, while the sum is 36.

The square root of 159975 is about 399.9687487792. The cubic root of 159975 is about 54.2855246663.

The spelling of 159975 in words is "one hundred fifty-nine thousand, nine hundred seventy-five".