159725229 has 16 divisors (see below), whose sum is σ = 224448000. Its totient is φ = 100756656.

The previous prime is 159725227. The next prime is 159725231. The reversal of 159725229 is 922527951.

159725229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (159725227) and next prime (159725231).

It is not a de Polignac number, because 159725229 - 2¹ = 159725227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159725227) 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, 78742 + ... + 80744.

It is an arithmetic number, because the mean of its divisors is an integer number (14028000).

Almost surely, 2^159725229 is an apocalyptic number.

159725229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

159725229 is a deficient number, since it is larger than the sum of its proper divisors (64722771).

159725229 is a wasteful number, since it uses less digits than its factorization.

159725229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424.

The product of its digits is 113400, while the sum is 42.

The square root of 159725229 is about 12638.2446961594. The cubic root of 159725229 is about 542.5725772353.

The spelling of 159725229 in words is "one hundred fifty-nine million, seven hundred twenty-five thousand, two hundred twenty-nine".