144646441 has 8 divisors (see below), whose sum is σ = 146298024. Its totient is φ = 143001600.

The previous prime is 144646429. The next prime is 144646451.

144646441 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 10758400 + 133888041 = 3280^2 + 11571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144646441 - 2⁵ = 144646409 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 144646397 and 144646406.

It is not an unprimeable number, because it can be changed into a prime (144646451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50241 + ... + 53041.

It is an arithmetic number, because the mean of its divisors is an integer number (18287253).

Almost surely, 2^144646441 is an apocalyptic number.

It is an amenable number.

144646441 is a deficient number, since it is larger than the sum of its proper divisors (1651583).

144646441 is a wasteful number, since it uses less digits than its factorization.

144646441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371.

The product of its digits is 36864, while the sum is 34.

The square root of 144646441 is about 12026.9048803090. The cubic root of 144646441 is about 524.9314389682.

The spelling of 144646441 in words is "one hundred forty-four million, six hundred forty-six thousand, four hundred forty-one".