144991445870533 has 2 divisors, whose sum is σ = 144991445870534. Its totient is φ = 144991445870532.

The previous prime is 144991445870527. The next prime is 144991445870561. The reversal of 144991445870533 is 335078544199441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99369756159844 + 45621689710689 = 9968438^2 + 6754383^2 .

It is a cyclic number.

It is not a de Polignac number, because 144991445870533 - 2⁹ = 144991445870021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144991445870833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72495722935266 + 72495722935267.

It is an arithmetic number, because the mean of its divisors is an integer number (72495722935267).

Almost surely, 2^{144991445870533} is an apocalyptic number.

It is an amenable number.

144991445870533 is a deficient number, since it is larger than the sum of its proper divisors (1).

144991445870533 is an equidigital number, since it uses as much as digits as its factorization.

144991445870533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 261273600, while the sum is 67.

The spelling of 144991445870533 in words is "one hundred forty-four trillion, nine hundred ninety-one billion, four hundred forty-five million, eight hundred seventy thousand, five hundred thirty-three".