144040517 has 2 divisors, whose sum is σ = 144040518. Its totient is φ = 144040516.

The previous prime is 144040499. The next prime is 144040529. The reversal of 144040517 is 715040441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143976001 + 64516 = 11999^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 144040517 - 2⁸ = 144040261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144040217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72020258 + 72020259.

It is an arithmetic number, because the mean of its divisors is an integer number (72020259).

Almost surely, 2^144040517 is an apocalyptic number.

It is an amenable number.

144040517 is a deficient number, since it is larger than the sum of its proper divisors (1).

144040517 is an equidigital number, since it uses as much as digits as its factorization.

144040517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 144040517 is about 12001.6880895981. The cubic root of 144040517 is about 524.1974337592.

Adding to 144040517 its reverse (715040441), we get a palindrome (859080958).

The spelling of 144040517 in words is "one hundred forty-four million, forty thousand, five hundred seventeen".