134521405205 has 16 divisors (see below), whose sum is σ = 182173190400. Its totient is φ = 94460170560.

The previous prime is 134521405199. The next prime is 134521405217. The reversal of 134521405205 is 502504125431.

It is not a de Polignac number, because 134521405205 - 2¹² = 134521401109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42168125 + ... + 42171314.

It is an arithmetic number, because the mean of its divisors is an integer number (11385824400).

Almost surely, 2^134521405205 is an apocalyptic number.

It is an amenable number.

134521405205 is a deficient number, since it is larger than the sum of its proper divisors (47651785195).

134521405205 is a wasteful number, since it uses less digits than its factorization.

134521405205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84339484.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 134521405205 in words is "one hundred thirty-four billion, five hundred twenty-one million, four hundred five thousand, two hundred five".