144551201 has 2 divisors, whose sum is σ = 144551202. Its totient is φ = 144551200.

The previous prime is 144551191. The next prime is 144551203. The reversal of 144551201 is 102155441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77704225 + 66846976 = 8815^2 + 8176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144551201 is a prime.

It is a Sophie Germain prime.

Together with 144551203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (144551203) 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, 72275600 + 72275601.

It is an arithmetic number, because the mean of its divisors is an integer number (72275601).

Almost surely, 2^144551201 is an apocalyptic number.

It is an amenable number.

144551201 is a deficient number, since it is larger than the sum of its proper divisors (1).

144551201 is an equidigital number, since it uses as much as digits as its factorization.

144551201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 144551201 is about 12022.9447723925. The cubic root of 144551201 is about 524.8162029334.

The spelling of 144551201 in words is "one hundred forty-four million, five hundred fifty-one thousand, two hundred one".