210500013 has 8 divisors (see below), whose sum is σ = 289720576. Its totient is φ = 135806400.

The previous prime is 210499957. The next prime is 210500033. The reversal of 210500013 is 310005012.

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

It is not a de Polignac number, because 210500013 - 2²² = 206305709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210500033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131628 + ... + 1131813.

It is an arithmetic number, because the mean of its divisors is an integer number (36215072).

Almost surely, 2^210500013 is an apocalyptic number.

It is an amenable number.

210500013 is a deficient number, since it is larger than the sum of its proper divisors (79220563).

210500013 is a wasteful number, since it uses less digits than its factorization.

210500013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263475.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 210500013 is about 14508.6185765565. The cubic root of 210500013 is about 594.8635734574.

Adding to 210500013 its reverse (310005012), we get a palindrome (520505025).

The spelling of 210500013 in words is "two hundred ten million, five hundred thousand, thirteen".