144642516241 has 2 divisors, whose sum is σ = 144642516242. Its totient is φ = 144642516240.

The previous prime is 144642516197. The next prime is 144642516371. The reversal of 144642516241 is 142615246441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94408707600 + 50233808641 = 307260^2 + 224129^2 .

It is a cyclic number.

It is not a de Polignac number, because 144642516241 - 2⁷ = 144642516113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144642516194 and 144642516203.

It is not a weakly prime, because it can be changed into another prime (144642510241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72321258120 + 72321258121.

It is an arithmetic number, because the mean of its divisors is an integer number (72321258121).

Almost surely, 2^144642516241 is an apocalyptic number.

It is an amenable number.

144642516241 is a deficient number, since it is larger than the sum of its proper divisors (1).

144642516241 is an equidigital number, since it uses as much as digits as its factorization.

144642516241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 40.

The spelling of 144642516241 in words is "one hundred forty-four billion, six hundred forty-two million, five hundred sixteen thousand, two hundred forty-one".