144602433881 has 2 divisors, whose sum is σ = 144602433882. Its totient is φ = 144602433880.

The previous prime is 144602433869. The next prime is 144602433931. The reversal of 144602433881 is 188334206441.

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., 79702323856 + 64900110025 = 282316^2 + 254755^2 .

It is an emirp because it is prime and its reverse (188334206441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144602433881 is a prime.

It is a super-2 number, since 2×144602433881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144602433841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72301216940 + 72301216941.

It is an arithmetic number, because the mean of its divisors is an integer number (72301216941).

Almost surely, 2^144602433881 is an apocalyptic number.

It is an amenable number.

144602433881 is a deficient number, since it is larger than the sum of its proper divisors (1).

144602433881 is an equidigital number, since it uses as much as digits as its factorization.

144602433881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 144602433881 in words is "one hundred forty-four billion, six hundred two million, four hundred thirty-three thousand, eight hundred eighty-one".