144225401 has 2 divisors, whose sum is σ = 144225402. Its totient is φ = 144225400.

The previous prime is 144225379. The next prime is 144225461. The reversal of 144225401 is 104522441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141253225 + 2972176 = 11885^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 144225401 - 2²² = 140031097 is a prime.

It is a super-2 number, since 2×144225401² = 41601932587221602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144225461) 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, 72112700 + 72112701.

It is an arithmetic number, because the mean of its divisors is an integer number (72112701).

Almost surely, 2^144225401 is an apocalyptic number.

It is an amenable number.

144225401 is a deficient number, since it is larger than the sum of its proper divisors (1).

144225401 is an equidigital number, since it uses as much as digits as its factorization.

144225401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 144225401 is about 12009.3880360325. The cubic root of 144225401 is about 524.4216167052.

Adding to 144225401 its reverse (104522441), we get a palindrome (248747842).

The spelling of 144225401 in words is "one hundred forty-four million, two hundred twenty-five thousand, four hundred one".