144364081 has 2 divisors, whose sum is σ = 144364082. Its totient is φ = 144364080.

The previous prime is 144364067. The next prime is 144364093. The reversal of 144364081 is 180463441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139594225 + 4769856 = 11815^2 + 2184^2 .

It is an emirp because it is prime and its reverse (180463441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144364081 - 2⁵ = 144364049 is a prime.

It is a super-2 number, since 2×144364081² = 41681975765949122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144364021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72182040 + 72182041.

It is an arithmetic number, because the mean of its divisors is an integer number (72182041).

Almost surely, 2^144364081 is an apocalyptic number.

It is an amenable number.

144364081 is a deficient number, since it is larger than the sum of its proper divisors (1).

144364081 is an equidigital number, since it uses as much as digits as its factorization.

144364081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 144364081 is about 12015.1604650125. The cubic root of 144364081 is about 524.5896488077.

The spelling of 144364081 in words is "one hundred forty-four million, three hundred sixty-four thousand, eighty-one".