159938449 has 16 divisors (see below), whose sum is σ = 177137280. Its totient is φ = 143200000.

The previous prime is 159938437. The next prime is 159938459. The reversal of 159938449 is 944839951.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159938449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159938396 and 159938405.

It is not an unprimeable number, because it can be changed into a prime (159938459) 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, 398649 + ... + 399049.

It is an arithmetic number, because the mean of its divisors is an integer number (11071080).

Almost surely, 2^159938449 is an apocalyptic number.

It is an amenable number.

159938449 is a deficient number, since it is larger than the sum of its proper divisors (17198831).

159938449 is a wasteful number, since it uses less digits than its factorization.

159938449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its digits is 1399680, while the sum is 52.

The square root of 159938449 is about 12646.6773897336. The cubic root of 159938449 is about 542.8138997575.

It can be divided in two parts, 15993 and 8449, that added together give a palindrome (24442).

The spelling of 159938449 in words is "one hundred fifty-nine million, nine hundred thirty-eight thousand, four hundred forty-nine".