144709249 has 2 divisors, whose sum is σ = 144709250. Its totient is φ = 144709248.

The previous prime is 144709237. The next prime is 144709267. The reversal of 144709249 is 942907441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143233024 + 1476225 = 11968^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 144709249 - 2⁷ = 144709121 is a prime.

It is a super-2 number, since 2×144709249² = 41881533492288002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144709349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72354624 + 72354625.

It is an arithmetic number, because the mean of its divisors is an integer number (72354625).

Almost surely, 2^144709249 is an apocalyptic number.

It is an amenable number.

144709249 is a deficient number, since it is larger than the sum of its proper divisors (1).

144709249 is an equidigital number, since it uses as much as digits as its factorization.

144709249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 144709249 is about 12029.5157425393. The cubic root of 144709249 is about 525.0074060936.

The spelling of 144709249 in words is "one hundred forty-four million, seven hundred nine thousand, two hundred forty-nine".