20534102 has 4 divisors (see below), whose sum is σ = 30801156. Its totient is φ = 10267050.

The previous prime is 20534099. The next prime is 20534141. The reversal of 20534102 is 20143502.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 5133524 + ... + 5133527.

It is an arithmetic number, because the mean of its divisors is an integer number (7700289).

Almost surely, 2^20534102 is an apocalyptic number.

20534102 is a deficient number, since it is larger than the sum of its proper divisors (10267054).

20534102 is a wasteful number, since it uses less digits than its factorization.

20534102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267053.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20534102 is about 4531.4569401022. The cubic root of 20534102 is about 273.8368592132.

Adding to 20534102 its reverse (20143502), we get a palindrome (40677604).

The spelling of 20534102 in words is "twenty million, five hundred thirty-four thousand, one hundred two".