159421029 has 4 divisors (see below), whose sum is σ = 212561376. Its totient is φ = 106280684.

The previous prime is 159421013. The next prime is 159421037. The reversal of 159421029 is 920124951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159421029 - 2⁴ = 159421013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159421099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26570169 + ... + 26570174.

It is an arithmetic number, because the mean of its divisors is an integer number (53140344).

Almost surely, 2^159421029 is an apocalyptic number.

It is an amenable number.

159421029 is a deficient number, since it is larger than the sum of its proper divisors (53140347).

159421029 is an equidigital number, since it uses as much as digits as its factorization.

159421029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53140346.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 159421029 is about 12626.2040613955. The cubic root of 159421029 is about 542.2279114389.

The spelling of 159421029 in words is "one hundred fifty-nine million, four hundred twenty-one thousand, twenty-nine".