210109852 has 24 divisors (see below), whose sum is σ = 375040512. Its totient is φ = 102975600.

The previous prime is 210109813. The next prime is 210109859. The reversal of 210109852 is 258901012.

It is a super-2 number, since 2×210109852² = 88292299814923808, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 210109852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210109859) by changing a digit.

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, 41077 + ... + 45907.

It is an arithmetic number, because the mean of its divisors is an integer number (15626688).

Almost surely, 2^210109852 is an apocalyptic number.

It is an amenable number.

210109852 is a deficient number, since it is larger than the sum of its proper divisors (164930660).

210109852 is a wasteful number, since it uses less digits than its factorization.

210109852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049 (or 5047 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 210109852 is about 14495.1665047353. The cubic root of 210109852 is about 594.4958203388.

The spelling of 210109852 in words is "two hundred ten million, one hundred nine thousand, eight hundred fifty-two".