135451452434221 has 8 divisors (see below), whose sum is σ = 168874538099904. Its totient is φ = 105546586312320.

The previous prime is 135451452434197. The next prime is 135451452434239. The reversal of 135451452434221 is 122434254154531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135451452434221 - 2²⁷ = 135451318216493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135451452444221) 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 7 ways as a sum of consecutive naturals, for example, 879554885860 + ... + 879554886013.

It is an arithmetic number, because the mean of its divisors is an integer number (21109317262488).

Almost surely, 2^{135451452434221} is an apocalyptic number.

135451452434221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135451452434221 is a deficient number, since it is larger than the sum of its proper divisors (33423085665683).

135451452434221 is a wasteful number, since it uses less digits than its factorization.

135451452434221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759109771891.

The product of its digits is 2304000, while the sum is 46.

It can be divided in two parts, 1354514 and 52434221, that added together give a palindrome (53788735).

The spelling of 135451452434221 in words is "one hundred thirty-five trillion, four hundred fifty-one billion, four hundred fifty-two million, four hundred thirty-four thousand, two hundred twenty-one".