144540481 has 2 divisors, whose sum is σ = 144540482. Its totient is φ = 144540480.

The previous prime is 144540469. The next prime is 144540493. The reversal of 144540481 is 184045441.

It is a balanced prime because it is at equal distance from previous prime (144540469) and next prime (144540493).

It can be written as a sum of positive squares in only one way, i.e., 117072400 + 27468081 = 10820^2 + 5241^2 .

It is an emirp because it is prime and its reverse (184045441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144540481 - 2¹⁹ = 144016193 is a prime.

It is a super-2 number, since 2×144540481² = 41783901295422722, which contains 22 as substring.

It is equal to p_8154256 and since 144540481 and 8154256 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (144540881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72270240 + 72270241.

It is an arithmetic number, because the mean of its divisors is an integer number (72270241).

Almost surely, 2^144540481 is an apocalyptic number.

It is an amenable number.

144540481 is a deficient number, since it is larger than the sum of its proper divisors (1).

144540481 is an equidigital number, since it uses as much as digits as its factorization.

144540481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 144540481 is about 12022.4989498856. The cubic root of 144540481 is about 524.8032290558.

The spelling of 144540481 in words is "one hundred forty-four million, five hundred forty thousand, four hundred eighty-one".