144314200420981 has 2 divisors, whose sum is σ = 144314200420982. Its totient is φ = 144314200420980.

The previous prime is 144314200420967. The next prime is 144314200421003. The reversal of 144314200420981 is 189024002413441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139476690500625 + 4837509920356 = 11810025^2 + 2199434^2 .

It is a cyclic number.

It is not a de Polignac number, because 144314200420981 - 2¹⁵ = 144314200388213 is a prime.

It is a super-2 number, since 2×144314200420981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144314200420961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72157100210490 + 72157100210491.

It is an arithmetic number, because the mean of its divisors is an integer number (72157100210491).

Almost surely, 2^{144314200420981} is an apocalyptic number.

It is an amenable number.

144314200420981 is a deficient number, since it is larger than the sum of its proper divisors (1).

144314200420981 is an equidigital number, since it uses as much as digits as its factorization.

144314200420981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 144314200420981 in words is "one hundred forty-four trillion, three hundred fourteen billion, two hundred million, four hundred twenty thousand, nine hundred eighty-one".