144420511 has 2 divisors, whose sum is σ = 144420512. Its totient is φ = 144420510.

The previous prime is 144420481. The next prime is 144420517. The reversal of 144420511 is 115024441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144420511 - 2⁷ = 144420383 is a prime.

It is a super-2 number, since 2×144420511² = 41714567995002242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144420517) 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, 72210255 + 72210256.

It is an arithmetic number, because the mean of its divisors is an integer number (72210256).

Almost surely, 2^144420511 is an apocalyptic number.

144420511 is a deficient number, since it is larger than the sum of its proper divisors (1).

144420511 is an equidigital number, since it uses as much as digits as its factorization.

144420511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 144420511 is about 12017.5085188237. The cubic root of 144420511 is about 524.6579916102.

Adding to 144420511 its reverse (115024441), we get a palindrome (259444952).

The spelling of 144420511 in words is "one hundred forty-four million, four hundred twenty thousand, five hundred eleven".