206129212 has 12 divisors (see below), whose sum is σ = 360828216. Its totient is φ = 103035440.

The previous prime is 206129207. The next prime is 206129227. The reversal of 206129212 is 212921602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19758 + ... + 28330.

It is an arithmetic number, because the mean of its divisors is an integer number (30069018).

Almost surely, 2^206129212 is an apocalyptic number.

It is an amenable number.

206129212 is a deficient number, since it is larger than the sum of its proper divisors (154699004).

206129212 is a wasteful number, since it uses less digits than its factorization.

206129212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14588 (or 14586 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 206129212 is about 14357.2007020867. The cubic root of 206129212 is about 590.7175144946.

The spelling of 206129212 in words is "two hundred six million, one hundred twenty-nine thousand, two hundred twelve".