144540013 has 2 divisors, whose sum is σ = 144540014. Its totient is φ = 144540012.

The previous prime is 144539963. The next prime is 144540023. The reversal of 144540013 is 310045441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 31606884 = 10627^2 + 5622^2 .

It is an emirp because it is prime and its reverse (310045441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144540013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144540023) 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 as a sum of consecutive naturals, namely, 72270006 + 72270007.

It is an arithmetic number, because the mean of its divisors is an integer number (72270007).

Almost surely, 2^144540013 is an apocalyptic number.

It is an amenable number.

144540013 is a deficient number, since it is larger than the sum of its proper divisors (1).

144540013 is an equidigital number, since it uses as much as digits as its factorization.

144540013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 144540013 is about 12022.4794863622. The cubic root of 144540013 is about 524.8026626443.

Adding to 144540013 its reverse (310045441), we get a palindrome (454585454).

The spelling of 144540013 in words is "one hundred forty-four million, five hundred forty thousand, thirteen".