144490441 has 4 divisors (see below), whose sum is σ = 149472900. Its totient is φ = 139507984.

The previous prime is 144490427. The next prime is 144490483. The reversal of 144490441 is 144094441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144094441 = 307 ⋅469363.

It can be written as a sum of positive squares in 2 ways, for example, as 96118416 + 48372025 = 9804^2 + 6955^2 .

It is a cyclic number.

It is not a de Polignac number, because 144490441 - 2¹⁵ = 144457673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144491441) 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, 2491186 + ... + 2491243.

It is an arithmetic number, because the mean of its divisors is an integer number (37368225).

Almost surely, 2^144490441 is an apocalyptic number.

It is an amenable number.

144490441 is a deficient number, since it is larger than the sum of its proper divisors (4982459).

144490441 is an equidigital number, since it uses as much as digits as its factorization.

144490441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982458.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 144490441 is about 12020.4176716119. The cubic root of 144490441 is about 524.7426596694.

The spelling of 144490441 in words is "one hundred forty-four million, four hundred ninety thousand, four hundred forty-one".