213170006 has 32 divisors (see below), whose sum is σ = 393634560. Its totient is φ = 84532896.

The previous prime is 213169997. The next prime is 213170017. The reversal of 213170006 is 600071312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 213170006.

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, 2120 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (12301080).

Almost surely, 2^213170006 is an apocalyptic number.

213170006 is a deficient number, since it is larger than the sum of its proper divisors (180464554).

213170006 is a wasteful number, since it uses less digits than its factorization.

213170006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18708.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 213170006 is about 14600.3426672116. The cubic root of 213170006 is about 597.3681073002.

The spelling of 213170006 in words is "two hundred thirteen million, one hundred seventy thousand, six".