144914481 has 8 divisors (see below), whose sum is σ = 214688160. Its totient is φ = 96609636.

The previous prime is 144914461. The next prime is 144914503. The reversal of 144914481 is 184419441.

It is not a de Polignac number, because 144914481 - 2⁵ = 144914449 is a prime.

It is a super-2 number, since 2×144914481² = 42000413606998722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144914401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683575 + ... + 2683628.

It is an arithmetic number, because the mean of its divisors is an integer number (26836020).

Almost surely, 2^144914481 is an apocalyptic number.

It is an amenable number.

144914481 is a deficient number, since it is larger than the sum of its proper divisors (69773679).

144914481 is an equidigital number, since it uses as much as digits as its factorization.

144914481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367212 (or 5367206 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 144914481 is about 12038.0430718618. The cubic root of 144914481 is about 525.2554838155.

The spelling of 144914481 in words is "one hundred forty-four million, nine hundred fourteen thousand, four hundred eighty-one".