159513449 has 4 divisors (see below), whose sum is σ = 160016964. Its totient is φ = 159009936.

The previous prime is 159513443. The next prime is 159513451. The reversal of 159513449 is 944315951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944315951 = 29 ⋅32562619.

It can be written as a sum of positive squares in 2 ways, for example, as 83265625 + 76247824 = 9125^2 + 8732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159513449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (159513443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251282 + ... + 251915.

It is an arithmetic number, because the mean of its divisors is an integer number (40004241).

Almost surely, 2^159513449 is an apocalyptic number.

It is an amenable number.

159513449 is a deficient number, since it is larger than the sum of its proper divisors (503515).

159513449 is an equidigital number, since it uses as much as digits as its factorization.

159513449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503514.

The product of its digits is 97200, while the sum is 41.

The square root of 159513449 is about 12629.8633801004. The cubic root of 159513449 is about 542.3326718192.

The spelling of 159513449 in words is "one hundred fifty-nine million, five hundred thirteen thousand, four hundred forty-nine".