20102134 has 8 divisors (see below), whose sum is σ = 32472720. Its totient is φ = 9277896.

The previous prime is 20102129. The next prime is 20102153. The reversal of 20102134 is 43120102.

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

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 386554 + ... + 386605.

It is an arithmetic number, because the mean of its divisors is an integer number (4059090).

Almost surely, 2^20102134 is an apocalyptic number.

20102134 is a deficient number, since it is larger than the sum of its proper divisors (12370586).

20102134 is a wasteful number, since it uses less digits than its factorization.

20102134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773174.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20102134 is about 4483.5403421850. The cubic root of 20102134 is about 271.9030345689.

Adding to 20102134 its reverse (43120102), we get a palindrome (63222236).

The spelling of 20102134 in words is "twenty million, one hundred two thousand, one hundred thirty-four".