144440531 has 2 divisors, whose sum is σ = 144440532. Its totient is φ = 144440530.

The previous prime is 144440521. The next prime is 144440533. The reversal of 144440531 is 135044441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144440531 - 2⁶ = 144440467 is a prime.

It is a super-2 number, since 2×144440531² = 41726133991123922, which contains 22 as substring.

Together with 144440533, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144440531.

It is not a weakly prime, because it can be changed into another prime (144440533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72220265 + 72220266.

It is an arithmetic number, because the mean of its divisors is an integer number (72220266).

Almost surely, 2^144440531 is an apocalyptic number.

144440531 is a deficient number, since it is larger than the sum of its proper divisors (1).

144440531 is an equidigital number, since it uses as much as digits as its factorization.

144440531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 144440531 is about 12018.3414413138. The cubic root of 144440531 is about 524.6822337062.

Adding to 144440531 its reverse (135044441), we get a palindrome (279484972).

The spelling of 144440531 in words is "one hundred forty-four million, four hundred forty thousand, five hundred thirty-one".