144422013 has 8 divisors (see below), whose sum is σ = 192618688. Its totient is φ = 96253344.

The previous prime is 144422009. The next prime is 144422017. The reversal of 144422013 is 310224441.

It is an interprime number because it is at equal distance from previous prime (144422009) and next prime (144422017).

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

It is not a de Polignac number, because 144422013 - 2² = 144422009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144422017) 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, 14256 + ... + 22182.

It is an arithmetic number, because the mean of its divisors is an integer number (24077336).

Almost surely, 2^144422013 is an apocalyptic number.

It is an amenable number.

144422013 is a deficient number, since it is larger than the sum of its proper divisors (48196675).

144422013 is an equidigital number, since it uses as much as digits as its factorization.

144422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14003.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144422013 is about 12017.5710108158. The cubic root of 144422013 is about 524.6598104506.

Adding to 144422013 its reverse (310224441), we get a palindrome (454646454).

The spelling of 144422013 in words is "one hundred forty-four million, four hundred twenty-two thousand, thirteen".