210142102 has 4 divisors (see below), whose sum is σ = 315213156. Its totient is φ = 105071050.

The previous prime is 210142073. The next prime is 210142111. The reversal of 210142102 is 201241012.

It is a happy number.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 52535524 + ... + 52535527.

It is an arithmetic number, because the mean of its divisors is an integer number (78803289).

Almost surely, 2^210142102 is an apocalyptic number.

210142102 is a deficient number, since it is larger than the sum of its proper divisors (105071054).

210142102 is a wasteful number, since it uses less digits than its factorization.

210142102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105071053.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 210142102 is about 14496.2789018424. The cubic root of 210142102 is about 594.5262353957.

Adding to 210142102 its reverse (201241012), we get a palindrome (411383114).

The spelling of 210142102 in words is "two hundred ten million, one hundred forty-two thousand, one hundred two".