144504140 has 48 divisors (see below), whose sum is σ = 331871904. Its totient is φ = 52416000.

The previous prime is 144504121. The next prime is 144504149. The reversal of 144504140 is 41405441.

It is a happy number.

144504140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (144504149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153752 + ... + 154688.

It is an arithmetic number, because the mean of its divisors is an integer number (6913998).

Almost surely, 2^144504140 is an apocalyptic number.

144504140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144504140 is an abundant number, since it is smaller than the sum of its proper divisors (187367764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144504140 is a wasteful number, since it uses less digits than its factorization.

144504140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 144504140 is about 12020.9874802364. The cubic root of 144504140 is about 524.7592425947.

Adding to 144504140 its reverse (41405441), we get a palindrome (185909581).

The spelling of 144504140 in words is "one hundred forty-four million, five hundred four thousand, one hundred forty".