210725126 has 8 divisors (see below), whose sum is σ = 329830704. Its totient is φ = 100781560.

The previous prime is 210725093. The next prime is 210725147. The reversal of 210725126 is 621527012.

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

It is a junction number, because it is equal to n+sod(n) for n = 210725095 and 210725104.

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 3 ways as a sum of consecutive naturals, for example, 2290445 + ... + 2290536.

It is an arithmetic number, because the mean of its divisors is an integer number (41228838).

Almost surely, 2^210725126 is an apocalyptic number.

210725126 is a deficient number, since it is larger than the sum of its proper divisors (119105578).

210725126 is a wasteful number, since it uses less digits than its factorization.

210725126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4581006.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 210725126 is about 14516.3744096107. The cubic root of 210725126 is about 595.0755509836.

The spelling of 210725126 in words is "two hundred ten million, seven hundred twenty-five thousand, one hundred twenty-six".