159129999 has 36 divisors (see below), whose sum is σ = 271099296. Its totient is φ = 89667648.

The previous prime is 159129973. The next prime is 159130043. The reversal of 159129999 is 999921951.

159129999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159129999 - 2⁸ = 159129743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159129599) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29722 + ... + 34664.

It is an arithmetic number, because the mean of its divisors is an integer number (7530536).

Almost surely, 2^159129999 is an apocalyptic number.

159129999 is a deficient number, since it is larger than the sum of its proper divisors (111969297).

159129999 is a wasteful number, since it uses less digits than its factorization.

159129999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036 (or 5026 counting only the distinct ones).

The product of its digits is 590490, while the sum is 54.

The square root of 159129999 is about 12614.6739553585. The cubic root of 159129999 is about 541.8977569335.

The spelling of 159129999 in words is "one hundred fifty-nine million, one hundred twenty-nine thousand, nine hundred ninety-nine".