144311445 has 12 divisors (see below), whose sum is σ = 250139916. Its totient is φ = 76966080.

The previous prime is 144311443. The next prime is 144311471. The reversal of 144311445 is 544113441.

It can be written as a sum of positive squares in 2 ways, for example, as 110124036 + 34187409 = 10494^2 + 5847^2 .

It is not a de Polignac number, because 144311445 - 2¹ = 144311443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144311443) 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, 1603416 + ... + 1603505.

It is an arithmetic number, because the mean of its divisors is an integer number (20844993).

Almost surely, 2^144311445 is an apocalyptic number.

144311445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144311445 is a deficient number, since it is larger than the sum of its proper divisors (105828471).

144311445 is a wasteful number, since it uses less digits than its factorization.

144311445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206932 (or 3206929 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 144311445 is about 12012.9698659407. The cubic root of 144311445 is about 524.5258848919.

Adding to 144311445 its reverse (544113441), we get a palindrome (688424886).

It can be divided in two parts, 14431 and 1445, that added together give a square (15876 = 126²).

The spelling of 144311445 in words is "one hundred forty-four million, three hundred eleven thousand, four hundred forty-five".