20134345 has 48 divisors (see below), whose sum is σ = 31781376. Its totient is φ = 12096000.

The previous prime is 20134343. The next prime is 20134369. The reversal of 20134345 is 54343102.

It is not a de Polignac number, because 20134345 - 2¹ = 20134343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83425 + ... + 83665.

It is an arithmetic number, because the mean of its divisors is an integer number (662112).

Almost surely, 2^20134345 is an apocalyptic number.

It is an amenable number.

20134345 is a deficient number, since it is larger than the sum of its proper divisors (11647031).

20134345 is a wasteful number, since it uses less digits than its factorization.

20134345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20134345 is about 4487.1310433282. The cubic root of 20134345 is about 272.0481865682.

Adding to 20134345 its reverse (54343102), we get a palindrome (74477447).

The spelling of 20134345 in words is "twenty million, one hundred thirty-four thousand, three hundred forty-five".