213320194 has 16 divisors (see below), whose sum is σ = 323706240. Its totient is φ = 105423120.

The previous prime is 213320189. The next prime is 213320203. The reversal of 213320194 is 491023312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113079 + ... + 114949.

It is an arithmetic number, because the mean of its divisors is an integer number (20231640).

Almost surely, 2^213320194 is an apocalyptic number.

213320194 is a deficient number, since it is larger than the sum of its proper divisors (110386046).

213320194 is a wasteful number, since it uses less digits than its factorization.

213320194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 213320194 is about 14605.4850655499. The cubic root of 213320194 is about 597.5083653994.

The spelling of 213320194 in words is "two hundred thirteen million, three hundred twenty thousand, one hundred ninety-four".