144322513 has 4 divisors (see below), whose sum is σ = 145376100. Its totient is φ = 143268928.

The previous prime is 144322511. The next prime is 144322547. The reversal of 144322513 is 315223441.

144322513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38787984 + 105534529 = 6228^2 + 10273^2 .

It is a cyclic number.

It is not a de Polignac number, because 144322513 - 2¹ = 144322511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144322511) 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, 526588 + ... + 526861.

It is an arithmetic number, because the mean of its divisors is an integer number (36344025).

Almost surely, 2^144322513 is an apocalyptic number.

It is an amenable number.

144322513 is a deficient number, since it is larger than the sum of its proper divisors (1053587).

144322513 is a wasteful number, since it uses less digits than its factorization.

144322513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053586.

The product of its digits is 2880, while the sum is 25.

The square root of 144322513 is about 12013.4305258739. The cubic root of 144322513 is about 524.5392940942.

Adding to 144322513 its reverse (315223441), we get a palindrome (459545954).

The spelling of 144322513 in words is "one hundred forty-four million, three hundred twenty-two thousand, five hundred thirteen".