159938899 has 4 divisors (see below), whose sum is σ = 160105264. Its totient is φ = 159772536.

The previous prime is 159938843. The next prime is 159938921. The reversal of 159938899 is 998839951.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159938899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159938809) 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 3 ways as a sum of consecutive naturals, for example, 81732 + ... + 83665.

It is an arithmetic number, because the mean of its divisors is an integer number (40026316).

Almost surely, 2^159938899 is an apocalyptic number.

159938899 is a deficient number, since it is larger than the sum of its proper divisors (166365).

159938899 is an equidigital number, since it uses as much as digits as its factorization.

159938899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166364.

The product of its digits is 6298560, while the sum is 61.

The square root of 159938899 is about 12646.6951809554. The cubic root of 159938899 is about 542.8144088409.

The spelling of 159938899 in words is "one hundred fifty-nine million, nine hundred thirty-eight thousand, eight hundred ninety-nine".