135420434052005 has 16 divisors (see below), whose sum is σ = 171057821371200. Its totient is φ = 102634175635200.

The previous prime is 135420434051977. The next prime is 135420434052011. The reversal of 135420434052005 is 500250434024531.

It is a de Polignac number, because none of the positive numbers 2^k-135420434052005 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135420434052005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41597405 + ... + 44734605.

It is an arithmetic number, because the mean of its divisors is an integer number (10691113835700).

Almost surely, 2^{135420434052005} is an apocalyptic number.

It is an amenable number.

135420434052005 is a deficient number, since it is larger than the sum of its proper divisors (35637387319195).

135420434052005 is a wasteful number, since it uses less digits than its factorization.

135420434052005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591604.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 135420434052005 its reverse (500250434024531), we get a palindrome (635670868076536).

The spelling of 135420434052005 in words is "one hundred thirty-five trillion, four hundred twenty billion, four hundred thirty-four million, fifty-two thousand, five".