159957 has 12 divisors (see below), whose sum is σ = 264160. Its totient is φ = 91368.

The previous prime is 159937. The next prime is 159977. The reversal of 159957 is 759951.

It is a happy number.

159957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (159937) and next prime (159977).

It is not a de Polignac number, because 159957 - 2⁸ = 159701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1207 + ... + 1332.

2¹⁵⁹⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

159957 is a deficient number, since it is larger than the sum of its proper divisors (104203).

159957 is a wasteful number, since it uses less digits than its factorization.

159957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2549 counting only the distinct ones).

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

The square root of 159957 is about 399.9462463882. The cubic root of 159957 is about 54.2834885646.

The spelling of 159957 in words is "one hundred fifty-nine thousand, nine hundred fifty-seven".