159979252 has 6 divisors (see below), whose sum is σ = 279963698. Its totient is φ = 79989624.

The previous prime is 159979243. The next prime is 159979277. The reversal of 159979252 is 252979951.

It can be written as a sum of positive squares in only one way, i.e., 142706916 + 17272336 = 11946^2 + 4156^2 .

It is a super-2 number, since 2×159979252² = 51186722140959008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 159979196 and 159979205.

It is a congruent number.

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, 19997403 + ... + 19997410.

Almost surely, 2^159979252 is an apocalyptic number.

It is an amenable number.

159979252 is a deficient number, since it is larger than the sum of its proper divisors (119984446).

159979252 is a wasteful number, since it uses less digits than its factorization.

159979252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39994817 (or 39994815 counting only the distinct ones).

The product of its digits is 510300, while the sum is 49.

The square root of 159979252 is about 12648.2904773728. The cubic root of 159979252 is about 542.8600561643.

The spelling of 159979252 in words is "one hundred fifty-nine million, nine hundred seventy-nine thousand, two hundred fifty-two".