135525344443 has 2 divisors, whose sum is σ = 135525344444. Its totient is φ = 135525344442.

The previous prime is 135525344441. The next prime is 135525344501. The reversal of 135525344443 is 344443525531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135525344443 - 2¹ = 135525344441 is a prime.

Together with 135525344441, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 135525344443.

It is not a weakly prime, because it can be changed into another prime (135525344441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67762672221 + 67762672222.

It is an arithmetic number, because the mean of its divisors is an integer number (67762672222).

Almost surely, 2^135525344443 is an apocalyptic number.

135525344443 is a deficient number, since it is larger than the sum of its proper divisors (1).

135525344443 is an equidigital number, since it uses as much as digits as its factorization.

135525344443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728000, while the sum is 43.

Adding to 135525344443 its reverse (344443525531), we get a palindrome (479968869974).

The spelling of 135525344443 in words is "one hundred thirty-five billion, five hundred twenty-five million, three hundred forty-four thousand, four hundred forty-three".