20860134 has 8 divisors (see below), whose sum is σ = 41720280. Its totient is φ = 6953376.

The previous prime is 20860097. The next prime is 20860163. The reversal of 20860134 is 43106802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20860134 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 1738339 + ... + 1738350.

It is an arithmetic number, because the mean of its divisors is an integer number (5215035).

Almost surely, 2^20860134 is an apocalyptic number.

20860134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20860134 is a wasteful number, since it uses less digits than its factorization.

20860134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476694.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20860134 is about 4567.2895682231. The cubic root of 20860134 is about 275.2785453166.

Adding to 20860134 its reverse (43106802), we get a palindrome (63966936).

The spelling of 20860134 in words is "twenty million, eight hundred sixty thousand, one hundred thirty-four".