159261441 has 4 divisors (see below), whose sum is σ = 212348592. Its totient is φ = 106174292.

The previous prime is 159261433. The next prime is 159261451. The reversal of 159261441 is 144162951.

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: 144162951 = 3 ⋅48054317.

It is a cyclic number.

It is not a de Polignac number, because 159261441 - 2³ = 159261433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159261451) 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, 26543571 + ... + 26543576.

It is an arithmetic number, because the mean of its divisors is an integer number (53087148).

Almost surely, 2^159261441 is an apocalyptic number.

It is an amenable number.

159261441 is a deficient number, since it is larger than the sum of its proper divisors (53087151).

159261441 is an equidigital number, since it uses as much as digits as its factorization.

159261441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53087150.

The product of its digits is 8640, while the sum is 33.

The square root of 159261441 is about 12619.8827649071. The cubic root of 159261441 is about 542.0469190920.

The spelling of 159261441 in words is "one hundred fifty-nine million, two hundred sixty-one thousand, four hundred forty-one".