210512073 has 8 divisors (see below), whose sum is σ = 290361600. Its totient is φ = 135501968.

The previous prime is 210512021. The next prime is 210512087. The reversal of 210512073 is 370215012.

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

It is a cyclic number.

It is not a de Polignac number, because 210512073 - 2⁶ = 210512009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210513073) 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, 1209753 + ... + 1209926.

It is an arithmetic number, because the mean of its divisors is an integer number (36295200).

Almost surely, 2^210512073 is an apocalyptic number.

It is an amenable number.

210512073 is a deficient number, since it is larger than the sum of its proper divisors (79849527).

210512073 is a wasteful number, since it uses less digits than its factorization.

210512073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419711.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 210512073 is about 14509.0341856376. The cubic root of 210512073 is about 594.8749335797.

Adding to 210512073 its reverse (370215012), we get a palindrome (580727085).

The spelling of 210512073 in words is "two hundred ten million, five hundred twelve thousand, seventy-three".