159242621 has 8 divisors (see below), whose sum is σ = 169496064. Its totient is φ = 149087680.

The previous prime is 159242617. The next prime is 159242641. The reversal of 159242621 is 126242951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159242621 - 2² = 159242617 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 (159242641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21275 + ... + 27768.

It is an arithmetic number, because the mean of its divisors is an integer number (21187008).

Almost surely, 2^159242621 is an apocalyptic number.

It is an amenable number.

159242621 is a deficient number, since it is larger than the sum of its proper divisors (10253443).

159242621 is a wasteful number, since it uses less digits than its factorization.

159242621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49251.

The product of its digits is 8640, while the sum is 32.

The square root of 159242621 is about 12619.1370941123. The cubic root of 159242621 is about 542.0255669371.

The spelling of 159242621 in words is "one hundred fifty-nine million, two hundred forty-two thousand, six hundred twenty-one".