144819401 has 2 divisors, whose sum is σ = 144819402. Its totient is φ = 144819400.

The previous prime is 144819397. The next prime is 144819407. The reversal of 144819401 is 104918441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109725625 + 35093776 = 10475^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 144819401 - 2² = 144819397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144819407) 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, 72409700 + 72409701.

It is an arithmetic number, because the mean of its divisors is an integer number (72409701).

Almost surely, 2^144819401 is an apocalyptic number.

It is an amenable number.

144819401 is a deficient number, since it is larger than the sum of its proper divisors (1).

144819401 is an equidigital number, since it uses as much as digits as its factorization.

144819401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 144819401 is about 12034.0932770193. The cubic root of 144819401 is about 525.1405833644.

The spelling of 144819401 in words is "one hundred forty-four million, eight hundred nineteen thousand, four hundred one".