144513241 has 4 divisors (see below), whose sum is σ = 144690084. Its totient is φ = 144336400.

The previous prime is 144513169. The next prime is 144513247. The reversal of 144513241 is 142315441.

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 81072016 + 63441225 = 9004^2 + 7965^2 .

It is a cyclic number.

It is not a de Polignac number, because 144513241 - 2⁷ = 144513113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144513247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87190 + ... + 88831.

It is an arithmetic number, because the mean of its divisors is an integer number (36172521).

Almost surely, 2^144513241 is an apocalyptic number.

It is an amenable number.

144513241 is a deficient number, since it is larger than the sum of its proper divisors (176843).

144513241 is an equidigital number, since it uses as much as digits as its factorization.

144513241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176842.

The product of its digits is 1920, while the sum is 25.

The square root of 144513241 is about 12021.3660205486. The cubic root of 144513241 is about 524.7702589656.

Adding to 144513241 its reverse (142315441), we get a palindrome (286828682).

The spelling of 144513241 in words is "one hundred forty-four million, five hundred thirteen thousand, two hundred forty-one".