159857956 has 6 divisors (see below), whose sum is σ = 279751430. Its totient is φ = 79928976.

The previous prime is 159857941. The next prime is 159857969. The reversal of 159857956 is 659758951.

It can be written as a sum of positive squares in only one way, i.e., 159516900 + 341056 = 12630^2 + 584^2 .

It is a junction number, because it is equal to n+sod(n) for n = 159857897 and 159857906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19982241 + ... + 19982248.

Almost surely, 2^159857956 is an apocalyptic number.

It is an amenable number.

159857956 is a deficient number, since it is larger than the sum of its proper divisors (119893474).

159857956 is a wasteful number, since it uses less digits than its factorization.

159857956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39964493 (or 39964491 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 55.

The square root of 159857956 is about 12643.4946118547. The cubic root of 159857956 is about 542.7228229477.

The spelling of 159857956 in words is "one hundred fifty-nine million, eight hundred fifty-seven thousand, nine hundred fifty-six".