144768669 has 8 divisors (see below), whose sum is σ = 193108032. Its totient is φ = 96470880.

The previous prime is 144768661. The next prime is 144768691. The reversal of 144768669 is 966867441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144768669 - 2³ = 144768661 is a prime.

It is a super-2 number, since 2×144768669² = 41915935048063122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144768661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 17049.

It is an arithmetic number, because the mean of its divisors is an integer number (24138504).

Almost surely, 2^144768669 is an apocalyptic number.

It is an amenable number.

144768669 is a deficient number, since it is larger than the sum of its proper divisors (48339363).

144768669 is a wasteful number, since it uses less digits than its factorization.

144768669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20787.

The product of its digits is 1741824, while the sum is 51.

The square root of 144768669 is about 12031.9852476638. The cubic root of 144768669 is about 525.0792551550.

The spelling of 144768669 in words is "one hundred forty-four million, seven hundred sixty-eight thousand, six hundred sixty-nine".