144421413 has 8 divisors (see below), whose sum is σ = 202696800. Its totient is φ = 91213488.

The previous prime is 144421357. The next prime is 144421441. The reversal of 144421413 is 314124441.

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

It is not a de Polignac number, because 144421413 - 2⁶ = 144421349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421463) 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 7 ways as a sum of consecutive naturals, for example, 1266798 + ... + 1266911.

It is an arithmetic number, because the mean of its divisors is an integer number (25337100).

Almost surely, 2^144421413 is an apocalyptic number.

It is an amenable number.

144421413 is a deficient number, since it is larger than the sum of its proper divisors (58275387).

144421413 is a wasteful number, since it uses less digits than its factorization.

144421413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533731.

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

The square root of 144421413 is about 12017.5460473426. The cubic root of 144421413 is about 524.6590838847.

Adding to 144421413 its reverse (314124441), we get a palindrome (458545854).

The spelling of 144421413 in words is "one hundred forty-four million, four hundred twenty-one thousand, four hundred thirteen".