20170134 has 40 divisors (see below), whose sum is σ = 47582040. Its totient is φ = 6368544.

The previous prime is 20170121. The next prime is 20170141. The reversal of 20170134 is 43107102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 199 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (1189551).

Almost surely, 2^20170134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20170134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23791020).

20170134 is an abundant number, since it is smaller than the sum of its proper divisors (27411906).

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

20170134 is a wasteful number, since it uses less digits than its factorization.

20170134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586 (or 6577 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20170134 is about 4491.1172329388. The cubic root of 20170134 is about 272.2092806163.

Adding to 20170134 its reverse (43107102), we get a palindrome (63277236).

The spelling of 20170134 in words is "twenty million, one hundred seventy thousand, one hundred thirty-four".