142421601131533 has 2 divisors, whose sum is σ = 142421601131534. Its totient is φ = 142421601131532.

The previous prime is 142421601131489. The next prime is 142421601131549. The reversal of 142421601131533 is 335131106124241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95252973816169 + 47168627315364 = 9759763^2 + 6867942^2 .

It is a cyclic number.

It is not a de Polignac number, because 142421601131533 - 2⁹ = 142421601131021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142421601131492 and 142421601131501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142421601131933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71210800565766 + 71210800565767.

It is an arithmetic number, because the mean of its divisors is an integer number (71210800565767).

Almost surely, 2^{142421601131533} is an apocalyptic number.

It is an amenable number.

142421601131533 is a deficient number, since it is larger than the sum of its proper divisors (1).

142421601131533 is an equidigital number, since it uses as much as digits as its factorization.

142421601131533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 142421601131533 its reverse (335131106124241), we get a palindrome (477552707255774).

The spelling of 142421601131533 in words is "one hundred forty-two trillion, four hundred twenty-one billion, six hundred one million, one hundred thirty-one thousand, five hundred thirty-three".