159011389 has 4 divisors (see below), whose sum is σ = 159269724. Its totient is φ = 158753056.

The previous prime is 159011357. The next prime is 159011423. The reversal of 159011389 is 983110951.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 983110951 = 9697 ⋅101383.

It can be written as a sum of positive squares in 2 ways, for example, as 80245764 + 78765625 = 8958^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 159011389 - 2⁵ = 159011357 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 (159011329) 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, 128242 + ... + 129475.

It is an arithmetic number, because the mean of its divisors is an integer number (39817431).

Almost surely, 2^159011389 is an apocalyptic number.

It is an amenable number.

159011389 is a deficient number, since it is larger than the sum of its proper divisors (258335).

159011389 is an equidigital number, since it uses as much as digits as its factorization.

159011389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258334.

The product of its (nonzero) digits is 9720, while the sum is 37.

The square root of 159011389 is about 12609.9718080573. The cubic root of 159011389 is about 541.7630861836.

The spelling of 159011389 in words is "one hundred fifty-nine million, eleven thousand, three hundred eighty-nine".