144545537 has 2 divisors, whose sum is σ = 144545538. Its totient is φ = 144545536.

The previous prime is 144545491. The next prime is 144545561. The reversal of 144545537 is 735545441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105657841 + 38887696 = 10279^2 + 6236^2 .

It is a cyclic number.

It is not a de Polignac number, because 144545537 - 2²⁶ = 77436673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144545537.

It is not a weakly prime, because it can be changed into another prime (144545587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72272768 + 72272769.

It is an arithmetic number, because the mean of its divisors is an integer number (72272769).

Almost surely, 2^144545537 is an apocalyptic number.

It is an amenable number.

144545537 is a deficient number, since it is larger than the sum of its proper divisors (1).

144545537 is an equidigital number, since it uses as much as digits as its factorization.

144545537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 38.

The square root of 144545537 is about 12022.7092204711. The cubic root of 144545537 is about 524.8093481586.

It can be divided in two parts, 14454 and 5537, that added together give a palindrome (19991).

The spelling of 144545537 in words is "one hundred forty-four million, five hundred forty-five thousand, five hundred thirty-seven".