205538012 has 24 divisors (see below), whose sum is σ = 364558320. Its totient is φ = 101386880.

The previous prime is 205537999. The next prime is 205538033. The reversal of 205538012 is 210835502.

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, 119414 + ... + 121122.

It is an arithmetic number, because the mean of its divisors is an integer number (15189930).

Almost surely, 2^205538012 is an apocalyptic number.

It is an amenable number.

205538012 is a deficient number, since it is larger than the sum of its proper divisors (159020308).

205538012 is a wasteful number, since it uses less digits than its factorization.

205538012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 205538012 is about 14336.5969462770. The cubic root of 205538012 is about 590.1522273102.

The spelling of 205538012 in words is "two hundred five million, five hundred thirty-eight thousand, twelve".