210942725 has 12 divisors (see below), whose sum is σ = 298936224. Its totient is φ = 144646320.

The previous prime is 210942709. The next prime is 210942737. The reversal of 210942725 is 527249012.

It is not a de Polignac number, because 210942725 - 2⁴ = 210942709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210942691 and 210942700.

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 in 11 ways as a sum of consecutive naturals, for example, 602519 + ... + 602868.

It is an arithmetic number, because the mean of its divisors is an integer number (24911352).

Almost surely, 2^210942725 is an apocalyptic number.

210942725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

210942725 is a deficient number, since it is larger than the sum of its proper divisors (87993499).

210942725 is a wasteful number, since it uses less digits than its factorization.

210942725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205404 (or 1205399 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 210942725 is about 14523.8674257238. The cubic root of 210942725 is about 595.2803095115.

The spelling of 210942725 in words is "two hundred ten million, nine hundred forty-two thousand, seven hundred twenty-five".