212064158 has 4 divisors (see below), whose sum is σ = 318096240. Its totient is φ = 106032078.

The previous prime is 212064143. The next prime is 212064169. The reversal of 212064158 is 851460212.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212064158.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53016038 + ... + 53016041.

It is an arithmetic number, because the mean of its divisors is an integer number (79524060).

Almost surely, 2^212064158 is an apocalyptic number.

212064158 is a deficient number, since it is larger than the sum of its proper divisors (106032082).

212064158 is a wasteful number, since it uses less digits than its factorization.

212064158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106032081.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 212064158 is about 14562.4228066624. The cubic root of 212064158 is about 596.3333401725. Note that the first 4 decimals are identical.

The spelling of 212064158 in words is "two hundred twelve million, sixty-four thousand, one hundred fifty-eight".