135421434 has 24 divisors (see below), whose sum is σ = 293902752. Its totient is φ = 45065160.

The previous prime is 135421411. The next prime is 135421441. The reversal of 135421434 is 434124531.

It is a happy number.

135421434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 135421398 and 135421407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5397 + ... + 17319.

It is an arithmetic number, because the mean of its divisors is an integer number (12245948).

Almost surely, 2^135421434 is an apocalyptic number.

135421434 is an abundant number, since it is smaller than the sum of its proper divisors (158481318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135421434 is a wasteful number, since it uses less digits than its factorization.

135421434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12562 (or 12559 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 135421434 is about 11637.0715388366. The cubic root of 135421434 is about 513.5260383859.

Adding to 135421434 its reverse (434124531), we get a palindrome (569545965).

The spelling of 135421434 in words is "one hundred thirty-five million, four hundred twenty-one thousand, four hundred thirty-four".