144013244 has 6 divisors (see below), whose sum is σ = 252023184. Its totient is φ = 72006620.

The previous prime is 144013241. The next prime is 144013249. The reversal of 144013244 is 442310441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144013241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18001652 + ... + 18001659.

It is an arithmetic number, because the mean of its divisors is an integer number (42003864).

Almost surely, 2^144013244 is an apocalyptic number.

It is an amenable number.

144013244 is a deficient number, since it is larger than the sum of its proper divisors (108009940).

144013244 is a wasteful number, since it uses less digits than its factorization.

144013244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36003315 (or 36003313 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 144013244 is about 12000.5518206456. The cubic root of 144013244 is about 524.1643473765.

Adding to 144013244 its reverse (442310441), we get a palindrome (586323685).

The spelling of 144013244 in words is "one hundred forty-four million, thirteen thousand, two hundred forty-four".