20134305 has 16 divisors (see below), whose sum is σ = 35794560. Its totient is φ = 10738224.

The previous prime is 20134291. The next prime is 20134313. The reversal of 20134305 is 50343102.

It is not a de Polignac number, because 20134305 - 2⁶ = 20134241 is a prime.

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, 74437 + ... + 74706.

It is an arithmetic number, because the mean of its divisors is an integer number (2237160).

Almost surely, 2^20134305 is an apocalyptic number.

It is an amenable number.

20134305 is a deficient number, since it is larger than the sum of its proper divisors (15660255).

20134305 is a wasteful number, since it uses less digits than its factorization.

20134305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149157 (or 149151 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20134305 is about 4487.1265861351. The cubic root of 20134305 is about 272.0480064128.

Adding to 20134305 its reverse (50343102), we get a palindrome (70477407).

The spelling of 20134305 in words is "twenty million, one hundred thirty-four thousand, three hundred five".