210113136 has 80 divisors (see below), whose sum is σ = 617182720. Its totient is φ = 68402880.

The previous prime is 210113129. The next prime is 210113159. The reversal of 210113136 is 631311012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12921 + ... + 24231.

It is an arithmetic number, because the mean of its divisors is an integer number (7714784).

Almost surely, 2^210113136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210113136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308591360).

210113136 is an abundant number, since it is smaller than the sum of its proper divisors (407069584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210113136 is a wasteful number, since it uses less digits than its factorization.

210113136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11371 (or 11359 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 210113136 is about 14495.2797834330. The cubic root of 210113136 is about 594.4989176298.

Adding to 210113136 its reverse (631311012), we get a palindrome (841424148).

The spelling of 210113136 in words is "two hundred ten million, one hundred thirteen thousand, one hundred thirty-six".