134605435021 has 4 divisors (see below), whose sum is σ = 134789072092. Its totient is φ = 134421797952.

The previous prime is 134605434983. The next prime is 134605435049. The reversal of 134605435021 is 120534506431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121601453796 + 13003981225 = 348714^2 + 114035^2 .

It is a cyclic number.

It is not a de Polignac number, because 134605435021 - 2¹³ = 134605426829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134605435051) 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, 91817436 + ... + 91818901.

It is an arithmetic number, because the mean of its divisors is an integer number (33697268023).

Almost surely, 2^134605435021 is an apocalyptic number.

It is an amenable number.

134605435021 is a deficient number, since it is larger than the sum of its proper divisors (183637071).

134605435021 is an equidigital number, since it uses as much as digits as its factorization.

134605435021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183637070.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 134605435021 in words is "one hundred thirty-four billion, six hundred five million, four hundred thirty-five thousand, twenty-one".