144491663 has 2 divisors, whose sum is σ = 144491664. Its totient is φ = 144491662.

The previous prime is 144491657. The next prime is 144491689. The reversal of 144491663 is 366194441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144491663 - 2⁴ = 144491647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144491063) 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, 72245831 + 72245832.

It is an arithmetic number, because the mean of its divisors is an integer number (72245832).

Almost surely, 2^144491663 is an apocalyptic number.

144491663 is a deficient number, since it is larger than the sum of its proper divisors (1).

144491663 is an equidigital number, since it uses as much as digits as its factorization.

144491663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 144491663 is about 12020.4685016849. The cubic root of 144491663 is about 524.7441389685.

The spelling of 144491663 in words is "one hundred forty-four million, four hundred ninety-one thousand, six hundred sixty-three".