213170830 has 8 divisors (see below), whose sum is σ = 383707512. Its totient is φ = 85268328.

The previous prime is 213170821. The next prime is 213170843. The reversal of 213170830 is 38071312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213170795 and 213170804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10658532 + ... + 10658551.

It is an arithmetic number, because the mean of its divisors is an integer number (47963439).

Almost surely, 2^213170830 is an apocalyptic number.

213170830 is a deficient number, since it is larger than the sum of its proper divisors (170536682).

213170830 is a wasteful number, since it uses less digits than its factorization.

213170830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21317090.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 213170830 is about 14600.3708857001. The cubic root of 213170830 is about 597.3688769999.

The spelling of 213170830 in words is "two hundred thirteen million, one hundred seventy thousand, eight hundred thirty".