20854102 has 8 divisors (see below), whose sum is σ = 31342536. Its totient is φ = 10406592.

The previous prime is 20854091. The next prime is 20854109. The reversal of 20854102 is 20145802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20854109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8923 + ... + 11014.

It is an arithmetic number, because the mean of its divisors is an integer number (3917817).

Almost surely, 2^20854102 is an apocalyptic number.

20854102 is a deficient number, since it is larger than the sum of its proper divisors (10488434).

20854102 is a wasteful number, since it uses less digits than its factorization.

20854102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20462.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20854102 is about 4566.6291725955. The cubic root of 20854102 is about 275.2520092093.

Adding to 20854102 its reverse (20145802), we get a palindrome (40999904).

The spelling of 20854102 in words is "twenty million, eight hundred fifty-four thousand, one hundred two".