142521043155641 has 2 divisors, whose sum is σ = 142521043155642. Its totient is φ = 142521043155640.

The previous prime is 142521043155613. The next prime is 142521043155643. The reversal of 142521043155641 is 146551340125241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112790687127616 + 29730356028025 = 10620296^2 + 5452555^2 .

It is a cyclic number.

It is not a de Polignac number, because 142521043155641 - 2⁶ = 142521043155577 is a prime.

Together with 142521043155643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142521043155592 and 142521043155601.

It is not a weakly prime, because it can be changed into another prime (142521043155643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71260521577820 + 71260521577821.

It is an arithmetic number, because the mean of its divisors is an integer number (71260521577821).

Almost surely, 2^{142521043155641} is an apocalyptic number.

It is an amenable number.

142521043155641 is a deficient number, since it is larger than the sum of its proper divisors (1).

142521043155641 is an equidigital number, since it uses as much as digits as its factorization.

142521043155641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 142521043155641 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred fifty-five thousand, six hundred forty-one".