159979347 has 16 divisors (see below), whose sum is σ = 258552960. Its totient is φ = 96957000.

The previous prime is 159979343. The next prime is 159979349. The reversal of 159979347 is 743979951.

It is a happy number.

159979347 is a `hidden beast` number, since 1 + 599 + 7 + 9 + 3 + 47 = 666.

It is not a de Polignac number, because 159979347 - 2² = 159979343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159979293 and 159979302.

It is not an unprimeable number, because it can be changed into a prime (159979343) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 269029 + ... + 269622.

It is an arithmetic number, because the mean of its divisors is an integer number (16159560).

Almost surely, 2^159979347 is an apocalyptic number.

159979347 is a deficient number, since it is larger than the sum of its proper divisors (98573613).

159979347 is a wasteful number, since it uses less digits than its factorization.

159979347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538671 (or 538665 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 159979347 is about 12648.2942328205. The cubic root of 159979347 is about 542.8601636193.

The spelling of 159979347 in words is "one hundred fifty-nine million, nine hundred seventy-nine thousand, three hundred forty-seven".