144512769 has 16 divisors (see below), whose sum is σ = 196035840. Its totient is φ = 94673040.

The previous prime is 144512759. The next prime is 144512777. The reversal of 144512769 is 967215441.

It is not a de Polignac number, because 144512769 - 2⁵ = 144512737 is a prime.

It is a super-2 number, since 2×144512769² = 41767880808094722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144512759) 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 15 ways as a sum of consecutive naturals, for example, 131914 + ... + 133004.

It is an arithmetic number, because the mean of its divisors is an integer number (12252240).

Almost surely, 2^144512769 is an apocalyptic number.

It is an amenable number.

144512769 is a deficient number, since it is larger than the sum of its proper divisors (51523071).

144512769 is a wasteful number, since it uses less digits than its factorization.

144512769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820.

The product of its digits is 60480, while the sum is 39.

The square root of 144512769 is about 12021.3463888202. The cubic root of 144512769 is about 524.7696876411.

The spelling of 144512769 in words is "one hundred forty-four million, five hundred twelve thousand, seven hundred sixty-nine".