144341021 has 12 divisors (see below), whose sum is σ = 158988732. Its totient is φ = 130944000.

The previous prime is 144341017. The next prime is 144341023. The reversal of 144341021 is 120143441.

It can be written as a sum of positive squares in 2 ways, for example, as 51912025 + 92428996 = 7205^2 + 9614^2 .

It is not a de Polignac number, because 144341021 - 2² = 144341017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144340984 and 144341002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144341023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76631 + ... + 78491.

It is an arithmetic number, because the mean of its divisors is an integer number (13249061).

Almost surely, 2^144341021 is an apocalyptic number.

144341021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144341021 is a deficient number, since it is larger than the sum of its proper divisors (14647711).

144341021 is a wasteful number, since it uses less digits than its factorization.

144341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 144341021 is about 12014.2008057132. The cubic root of 144341021 is about 524.5617155402.

Adding to 144341021 its reverse (120143441), we get a palindrome (264484462).

The spelling of 144341021 in words is "one hundred forty-four million, three hundred forty-one thousand, twenty-one".