144414321 has 4 divisors (see below), whose sum is σ = 192552432. Its totient is φ = 96276212.

The previous prime is 144414313. The next prime is 144414323. The reversal of 144414321 is 123414441.

144414321 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.

It is a cyclic number.

It is not a de Polignac number, because 144414321 - 2³ = 144414313 is a prime.

It is a super-2 number, since 2×144414321² = 41710992219782082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144414291 and 144414300.

It is not an unprimeable number, because it can be changed into a prime (144414323) 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, 24069051 + ... + 24069056.

It is an arithmetic number, because the mean of its divisors is an integer number (48138108).

Almost surely, 2^144414321 is an apocalyptic number.

It is an amenable number.

144414321 is a deficient number, since it is larger than the sum of its proper divisors (48138111).

144414321 is an equidigital number, since it uses as much as digits as its factorization.

144414321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48138110.

The product of its digits is 1536, while the sum is 24.

The square root of 144414321 is about 12017.2509751607. The cubic root of 144414321 is about 524.6504957235.

Adding to 144414321 its reverse (123414441), we get a palindrome (267828762).

The spelling of 144414321 in words is "one hundred forty-four million, four hundred fourteen thousand, three hundred twenty-one".