159945269 has 4 divisors (see below), whose sum is σ = 174485760. Its totient is φ = 145404780.

The previous prime is 159945259. The next prime is 159945307. The reversal of 159945269 is 962549951.

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: 962549951 = 11 ⋅87504541.

It is a cyclic number.

It is not a de Polignac number, because 159945269 - 2²⁰ = 158896693 is a prime.

It is a super-2 number, since 2×159945269² = 51164978150964722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159945209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7270229 + ... + 7270250.

It is an arithmetic number, because the mean of its divisors is an integer number (43621440).

Almost surely, 2^159945269 is an apocalyptic number.

It is an amenable number.

159945269 is a deficient number, since it is larger than the sum of its proper divisors (14540491).

159945269 is a wasteful number, since it uses less digits than its factorization.

159945269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14540490.

The product of its digits is 874800, while the sum is 50.

The square root of 159945269 is about 12646.9470228985. The cubic root of 159945269 is about 542.8216150967.

The spelling of 159945269 in words is "one hundred fifty-nine million, nine hundred forty-five thousand, two hundred sixty-nine".