144404413 has 4 divisors (see below), whose sum is σ = 144527868. Its totient is φ = 144280960.

The previous prime is 144404411. The next prime is 144404431. The reversal of 144404413 is 314404441.

It is a happy number.

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 128187684 + 16216729 = 11322^2 + 4027^2 .

It is a cyclic number.

It is not a de Polignac number, because 144404413 - 2¹ = 144404411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59956 + ... + 62317.

It is an arithmetic number, because the mean of its divisors is an integer number (36131967).

Almost surely, 2^144404413 is an apocalyptic number.

It is an amenable number.

144404413 is a deficient number, since it is larger than the sum of its proper divisors (123455).

144404413 is a wasteful number, since it uses less digits than its factorization.

144404413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123454.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 144404413 is about 12016.8387273858. The cubic root of 144404413 is about 524.6384970150.

Adding to 144404413 its reverse (314404441), we get a palindrome (458808854).

The spelling of 144404413 in words is "one hundred forty-four million, four hundred four thousand, four hundred thirteen".