135454521503451 has 16 divisors (see below), whose sum is σ = 181728267015680. Its totient is φ = 89741981907360.

The previous prime is 135454521503423. The next prime is 135454521503461. The reversal of 135454521503451 is 154305125454531.

It is not a de Polignac number, because 135454521503451 - 2²⁵ = 135454487949019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135454521503451.

It is not an unprimeable number, because it can be changed into a prime (135454521503461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4586611 + ... + 17086428.

It is an arithmetic number, because the mean of its divisors is an integer number (11358016688480).

Almost surely, 2^{135454521503451} is an apocalyptic number.

135454521503451 is a deficient number, since it is larger than the sum of its proper divisors (46273745512229).

135454521503451 is a wasteful number, since it uses less digits than its factorization.

135454521503451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21685986.

The product of its (nonzero) digits is 3600000, while the sum is 48.

Adding to 135454521503451 its reverse (154305125454531), we get a palindrome (289759646957982).

The spelling of 135454521503451 in words is "one hundred thirty-five trillion, four hundred fifty-four billion, five hundred twenty-one million, five hundred three thousand, four hundred fifty-one".