144348469 has 4 divisors (see below), whose sum is σ = 145268044. Its totient is φ = 143428896.

The previous prime is 144348461. The next prime is 144348481. The reversal of 144348469 is 964843441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14730244 + 129618225 = 3838^2 + 11385^2 .

It is a cyclic number.

It is not a de Polignac number, because 144348469 - 2³ = 144348461 is a prime.

It is a super-2 number, since 2×144348469² = 41672961005287922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144348461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459552 + ... + 459865.

It is an arithmetic number, because the mean of its divisors is an integer number (36317011).

Almost surely, 2^144348469 is an apocalyptic number.

It is an amenable number.

144348469 is a deficient number, since it is larger than the sum of its proper divisors (919575).

144348469 is an equidigital number, since it uses as much as digits as its factorization.

144348469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919574.

The product of its digits is 331776, while the sum is 43.

The square root of 144348469 is about 12014.5107682336. The cubic root of 144348469 is about 524.5707378505.

The spelling of 144348469 in words is "one hundred forty-four million, three hundred forty-eight thousand, four hundred sixty-nine".