213313170 has 144 divisors (see below), whose sum is σ = 619441344. Its totient is φ = 46872000.

The previous prime is 213313147. The next prime is 213313187. The reversal of 213313170 is 71313312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1412595 + ... + 1412745.

It is an arithmetic number, because the mean of its divisors is an integer number (4301676).

Almost surely, 2^213313170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213313170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309720672).

213313170 is an abundant number, since it is smaller than the sum of its proper divisors (406128174).

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

213313170 is a wasteful number, since it uses less digits than its factorization.

213313170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 213313170 is about 14605.2446059626. The cubic root of 213313170 is about 597.5018072691.

Adding to 213313170 its reverse (71313312), we get a palindrome (284626482).

The spelling of 213313170 in words is "two hundred thirteen million, three hundred thirteen thousand, one hundred seventy".