205119812 has 6 divisors (see below), whose sum is σ = 358959678. Its totient is φ = 102559904.

The previous prime is 205119793. The next prime is 205119851. The reversal of 205119812 is 218911502.

It can be written as a sum of positive squares in only one way, i.e., 156900676 + 48219136 = 12526^2 + 6944^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25639973 + ... + 25639980.

It is an arithmetic number, because the mean of its divisors is an integer number (59826613).

Almost surely, 2^205119812 is an apocalyptic number.

It is an amenable number.

205119812 is a deficient number, since it is larger than the sum of its proper divisors (153839866).

205119812 is a wasteful number, since it uses less digits than its factorization.

205119812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51279957 (or 51279955 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 205119812 is about 14322.0044686489. The cubic root of 205119812 is about 589.7517024723.

The spelling of 205119812 in words is "two hundred five million, one hundred nineteen thousand, eight hundred twelve".