144348749 has 2 divisors, whose sum is σ = 144348750. Its totient is φ = 144348748.

The previous prime is 144348731. The next prime is 144348761. The reversal of 144348749 is 947843441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96393124 + 47955625 = 9818^2 + 6925^2 .

It is a cyclic number.

It is not a de Polignac number, because 144348749 - 2¹⁶ = 144283213 is a prime.

It is a super-2 number, since 2×144348749² = 41673122675730002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144348709) 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, 72174374 + 72174375.

It is an arithmetic number, because the mean of its divisors is an integer number (72174375).

Almost surely, 2^144348749 is an apocalyptic number.

It is an amenable number.

144348749 is a deficient number, since it is larger than the sum of its proper divisors (1).

144348749 is an equidigital number, since it uses as much as digits as its factorization.

144348749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 44.

The square root of 144348749 is about 12014.5224208039. The cubic root of 144348749 is about 524.5710770291.

The spelling of 144348749 in words is "one hundred forty-four million, three hundred forty-eight thousand, seven hundred forty-nine".