159018549 has 16 divisors (see below), whose sum is σ = 214308672. Its totient is φ = 104876928.

The previous prime is 159018529. The next prime is 159018551. The reversal of 159018549 is 945810951.

It is not a de Polignac number, because 159018549 - 2⁹ = 159018037 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 159018549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159018529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132697 + ... + 133889.

It is an arithmetic number, because the mean of its divisors is an integer number (13394292).

Almost surely, 2^159018549 is an apocalyptic number.

It is an amenable number.

159018549 is a deficient number, since it is larger than the sum of its proper divisors (55290123).

159018549 is a wasteful number, since it uses less digits than its factorization.

159018549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 159018549 is about 12610.2557071615. The cubic root of 159018549 is about 541.7712176042.

The spelling of 159018549 in words is "one hundred fifty-nine million, eighteen thousand, five hundred forty-nine".