159149789 has 4 divisors (see below), whose sum is σ = 159206880. Its totient is φ = 159092700.

The previous prime is 159149773. The next prime is 159149791. The reversal of 159149789 is 987941951.

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, and also an emirpimes, since its reverse is a distinct semiprime: 987941951 = 619 ⋅1596029.

It is a cyclic number.

It is not a de Polignac number, because 159149789 - 2⁴ = 159149773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159149789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159149759) 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, 24137 + ... + 30014.

It is an arithmetic number, because the mean of its divisors is an integer number (39801720).

Almost surely, 2^159149789 is an apocalyptic number.

It is an amenable number.

159149789 is a deficient number, since it is larger than the sum of its proper divisors (57091).

159149789 is an equidigital number, since it uses as much as digits as its factorization.

159149789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57090.

The product of its digits is 816480, while the sum is 53.

The square root of 159149789 is about 12615.4583349159. The cubic root of 159149789 is about 541.9202201442.

The spelling of 159149789 in words is "one hundred fifty-nine million, one hundred forty-nine thousand, seven hundred eighty-nine".