20142102 has 16 divisors (see below), whose sum is σ = 40343040. Its totient is φ = 6704232.

The previous prime is 20142091. The next prime is 20142131. The reversal of 20142102 is 20124102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2899 + ... + 6977.

It is an arithmetic number, because the mean of its divisors is an integer number (2521440).

Almost surely, 2^20142102 is an apocalyptic number.

20142102 is an abundant number, since it is smaller than the sum of its proper divisors (20200938).

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

20142102 is a wasteful number, since it uses less digits than its factorization.

20142102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20142102 is about 4487.9953208532. The cubic root of 20142102 is about 272.0831187009.

Adding to 20142102 its reverse (20124102), we get a palindrome (40266204).

The spelling of 20142102 in words is "twenty million, one hundred forty-two thousand, one hundred two".