135421434114451 has 4 divisors (see below), whose sum is σ = 135425592898792. Its totient is φ = 135417275330112.

The previous prime is 135421434114443. The next prime is 135421434114481. The reversal of 135421434114451 is 154411434124531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135421434114451 - 2³ = 135421434114443 is a prime.

It is a super-2 number, since 2×135421434114451² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135421434114398 and 135421434114407.

It is not an unprimeable number, because it can be changed into a prime (135421434114481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2079343326 + ... + 2079408451.

It is an arithmetic number, because the mean of its divisors is an integer number (33856398224698).

Almost surely, 2^{135421434114451} is an apocalyptic number.

135421434114451 is a deficient number, since it is larger than the sum of its proper divisors (4158784341).

135421434114451 is an equidigital number, since it uses as much as digits as its factorization.

135421434114451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158784340.

The product of its digits is 460800, while the sum is 43.

Adding to 135421434114451 its reverse (154411434124531), we get a palindrome (289832868238982).

The spelling of 135421434114451 in words is "one hundred thirty-five trillion, four hundred twenty-one billion, four hundred thirty-four million, one hundred fourteen thousand, four hundred fifty-one".