144454081 has 2 divisors, whose sum is σ = 144454082. Its totient is φ = 144454080.

The previous prime is 144454073. The next prime is 144454087. The reversal of 144454081 is 180454441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112021056 + 32433025 = 10584^2 + 5695^2 .

It is a cyclic number.

It is not a de Polignac number, because 144454081 - 2³ = 144454073 is a prime.

It is a super-2 number, since 2×144454081² = 41733963035109122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144454087) 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, 72227040 + 72227041.

It is an arithmetic number, because the mean of its divisors is an integer number (72227041).

Almost surely, 2^144454081 is an apocalyptic number.

It is an amenable number.

144454081 is a deficient number, since it is larger than the sum of its proper divisors (1).

144454081 is an equidigital number, since it uses as much as digits as its factorization.

144454081 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 144454081 is about 12018.9051498046. The cubic root of 144454081 is about 524.6986400475.

The spelling of 144454081 in words is "one hundred forty-four million, four hundred fifty-four thousand, eighty-one".