213066346 has 16 divisors (see below), whose sum is σ = 325709280. Its totient is φ = 104504400.

The previous prime is 213066311. The next prime is 213066383. The reversal of 213066346 is 643660312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62896 + ... + 66196.

It is an arithmetic number, because the mean of its divisors is an integer number (20356830).

Almost surely, 2^213066346 is an apocalyptic number.

213066346 is a deficient number, since it is larger than the sum of its proper divisors (112642934).

213066346 is a wasteful number, since it uses less digits than its factorization.

213066346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 213066346 is about 14596.7923188624. The cubic root of 213066346 is about 597.2712625030.

The spelling of 213066346 in words is "two hundred thirteen million, sixty-six thousand, three hundred forty-six".