144411669 has 6 divisors (see below), whose sum is σ = 208594646. Its totient is φ = 96274440.

The previous prime is 144411653. The next prime is 144411679. The reversal of 144411669 is 966114441.

It can be written as a sum of positive squares in only one way, i.e., 113742225 + 30669444 = 10665^2 + 5538^2 .

It is not a de Polignac number, because 144411669 - 2⁴ = 144411653 is a prime.

It is a super-2 number, since 2×144411669² = 41709460286731122, 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 (144411679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8022862 + ... + 8022879.

Almost surely, 2^144411669 is an apocalyptic number.

It is an amenable number.

144411669 is a deficient number, since it is larger than the sum of its proper divisors (64182977).

144411669 is a wasteful number, since it uses less digits than its factorization.

144411669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16045747 (or 16045744 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 144411669 is about 12017.1406332788. The cubic root of 144411669 is about 524.6472841730.

It can be divided in two parts, 14441 and 1669, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 144411669 in words is "one hundred forty-four million, four hundred eleven thousand, six hundred sixty-nine".