144529469 has 12 divisors (see below), whose sum is σ = 172229148. Its totient is φ = 120859200.

The previous prime is 144529453. The next prime is 144529513. The reversal of 144529469 is 964925441.

144529469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14341369 + 130188100 = 3787^2 + 11410^2 .

It is not a de Polignac number, because 144529469 - 2⁴ = 144529453 is a prime.

It is a super-2 number, since 2×144529469² = 41777534818843922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144559469) 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, 33962 + ... + 37979.

It is an arithmetic number, because the mean of its divisors is an integer number (14352429).

Almost surely, 2^144529469 is an apocalyptic number.

It is an amenable number.

144529469 is a deficient number, since it is larger than the sum of its proper divisors (27699679).

144529469 is an equidigital number, since it uses as much as digits as its factorization.

144529469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71996 (or 71989 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 144529469 is about 12022.0409664915. The cubic root of 144529469 is about 524.7899011173.

The spelling of 144529469 in words is "one hundred forty-four million, five hundred twenty-nine thousand, four hundred sixty-nine".