144452449 has 2 divisors, whose sum is σ = 144452450. Its totient is φ = 144452448.

The previous prime is 144452431. The next prime is 144452501. The reversal of 144452449 is 944254441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72931600 + 71520849 = 8540^2 + 8457^2 .

It is a cyclic number.

It is not a de Polignac number, because 144452449 - 2¹¹ = 144450401 is a prime.

It is equal to p_8149618 and since 144452449 and 8149618 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 (144452149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72226224 + 72226225.

It is an arithmetic number, because the mean of its divisors is an integer number (72226225).

Almost surely, 2^144452449 is an apocalyptic number.

It is an amenable number.

144452449 is a deficient number, since it is larger than the sum of its proper divisors (1).

144452449 is an equidigital number, since it uses as much as digits as its factorization.

144452449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 37.

The square root of 144452449 is about 12018.8372565735. The cubic root of 144452449 is about 524.6966640761.

The spelling of 144452449 in words is "one hundred forty-four million, four hundred fifty-two thousand, four hundred forty-nine".