210104140 has 12 divisors (see below), whose sum is σ = 441218736. Its totient is φ = 84041648.

The previous prime is 210104129. The next prime is 210104179. The reversal of 210104140 is 41401012.

It is a self number, because there is not a number n which added to its sum of digits gives 210104140.

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, 5252584 + ... + 5252623.

It is an arithmetic number, because the mean of its divisors is an integer number (36768228).

Almost surely, 2^210104140 is an apocalyptic number.

210104140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210104140 is an abundant number, since it is smaller than the sum of its proper divisors (231114596).

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

210104140 is a wasteful number, since it uses less digits than its factorization.

210104140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505216 (or 10505214 counting only the distinct ones).

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

The square root of 210104140 is about 14494.9694721997. The cubic root of 210104140 is about 594.4904330126.

Adding to 210104140 its reverse (41401012), we get a palindrome (251505152).

The spelling of 210104140 in words is "two hundred ten million, one hundred four thousand, one hundred forty".