205957212 has 24 divisors (see below), whose sum is σ = 482272896. Its totient is φ = 68408688.

The previous prime is 205957201. The next prime is 205957231. The reversal of 205957212 is 212759502.

It is a happy number.

It is a congruent number.

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, 26928 + ... + 33719.

It is an arithmetic number, because the mean of its divisors is an integer number (20094704).

Almost surely, 2^205957212 is an apocalyptic number.

It is an amenable number.

205957212 is an abundant number, since it is smaller than the sum of its proper divisors (276315684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205957212 is a wasteful number, since it uses less digits than its factorization.

205957212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60937 (or 60935 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 205957212 is about 14351.2094263863. The cubic root of 205957212 is about 590.5531650155.

The spelling of 205957212 in words is "two hundred five million, nine hundred fifty-seven thousand, two hundred twelve".