144537169 has 4 divisors (see below), whose sum is σ = 165185344. Its totient is φ = 123888996.

The previous prime is 144537139. The next prime is 144537181. The reversal of 144537169 is 961735441.

144537169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 961735441 = 17 ⋅56572673.

It is not a de Polignac number, because 144537169 - 2¹⁵ = 144504401 is a prime.

It is a super-2 number, since 2×144537169² = 41781986445069122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144537139) 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, 10324077 + ... + 10324090.

It is an arithmetic number, because the mean of its divisors is an integer number (41296336).

Almost surely, 2^144537169 is an apocalyptic number.

It is an amenable number.

144537169 is a deficient number, since it is larger than the sum of its proper divisors (20648175).

144537169 is an equidigital number, since it uses as much as digits as its factorization.

144537169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20648174.

The product of its digits is 90720, while the sum is 40.

The square root of 144537169 is about 12022.3612073502. The cubic root of 144537169 is about 524.7992205788.

The spelling of 144537169 in words is "one hundred forty-four million, five hundred thirty-seven thousand, one hundred sixty-nine".