144540441 has 12 divisors (see below), whose sum is σ = 217858368. Its totient is φ = 92170584.

The previous prime is 144540419. The next prime is 144540469. The reversal of 144540441 is 144045441.

It is not a de Polignac number, because 144540441 - 2⁶ = 144540377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144540481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348925 + ... + 349338.

It is an arithmetic number, because the mean of its divisors is an integer number (18154864).

Almost surely, 2^144540441 is an apocalyptic number.

It is an amenable number.

144540441 is a deficient number, since it is larger than the sum of its proper divisors (73317927).

144540441 is a wasteful number, since it uses less digits than its factorization.

144540441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698292 (or 698289 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 144540441 is about 12022.4972863378. The cubic root of 144540441 is about 524.8031806446.

Adding to 144540441 its reverse (144045441), we get a palindrome (288585882).

The spelling of 144540441 in words is "one hundred forty-four million, five hundred forty thousand, four hundred forty-one".