144914991797 has 2 divisors, whose sum is σ = 144914991798. Its totient is φ = 144914991796.

The previous prime is 144914991773. The next prime is 144914991839. The reversal of 144914991797 is 797199419441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114402238756 + 30512753041 = 338234^2 + 174679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144914991797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144914991707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72457495898 + 72457495899.

It is an arithmetic number, because the mean of its divisors is an integer number (72457495899).

Almost surely, 2^144914991797 is an apocalyptic number.

It is an amenable number.

144914991797 is a deficient number, since it is larger than the sum of its proper divisors (1).

144914991797 is an equidigital number, since it uses as much as digits as its factorization.

144914991797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20575296, while the sum is 65.

The spelling of 144914991797 in words is "one hundred forty-four billion, nine hundred fourteen million, nine hundred ninety-one thousand, seven hundred ninety-seven".