159897829 has 18 divisors (see below), whose sum is σ = 201422610. Its totient is φ = 126506016.

The previous prime is 159897823. The next prime is 159897833. The reversal of 159897829 is 928798951.

It can be written as a sum of positive squares in 3 ways, for example, as 6385729 + 153512100 = 2527^2 + 12390^2 .

It is not a de Polignac number, because 159897829 - 2²³ = 151509221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159897823) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1374 + ... + 17935.

It is an arithmetic number, because the mean of its divisors is an integer number (11190145).

Almost surely, 2^159897829 is an apocalyptic number.

It is an amenable number.

159897829 is a deficient number, since it is larger than the sum of its proper divisors (41524781).

159897829 is a wasteful number, since it uses less digits than its factorization.

159897829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19349 (or 19329 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 58.

The square root of 159897829 is about 12645.0713323413. The cubic root of 159897829 is about 542.7679425624.

The spelling of 159897829 in words is "one hundred fifty-nine million, eight hundred ninety-seven thousand, eight hundred twenty-nine".