205434512 has 10 divisors (see below), whose sum is σ = 398029398. Its totient is φ = 102717248.

The previous prime is 205434497. The next prime is 205434527. The reversal of 205434512 is 215434502.

It is a happy number.

205434512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205434497) and next prime (205434527).

It can be written as a sum of positive squares in only one way, i.e., 204032656 + 1401856 = 14284^2 + 1184^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419813 + ... + 6419844.

Almost surely, 2^205434512 is an apocalyptic number.

It is an amenable number.

205434512 is a deficient number, since it is larger than the sum of its proper divisors (192594886).

205434512 is a wasteful number, since it uses less digits than its factorization.

205434512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12839665 (or 12839659 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 205434512 is about 14332.9868485253. The cubic root of 205434512 is about 590.0531523502.

The spelling of 205434512 in words is "two hundred five million, four hundred thirty-four thousand, five hundred twelve".