205534245 has 16 divisors (see below), whose sum is σ = 375834240. Its totient is φ = 93958464.

The previous prime is 205534213. The next prime is 205534249. The reversal of 205534245 is 542435502.

It is not a de Polignac number, because 205534245 - 2⁵ = 205534213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205534249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978630 + ... + 978839.

It is an arithmetic number, because the mean of its divisors is an integer number (23489640).

Almost surely, 2^205534245 is an apocalyptic number.

It is an amenable number.

205534245 is a deficient number, since it is larger than the sum of its proper divisors (170299995).

205534245 is a wasteful number, since it uses less digits than its factorization.

205534245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957484.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 205534245 is about 14336.4655686121. The cubic root of 205534245 is about 590.1486219478.

Adding to 205534245 its reverse (542435502), we get a palindrome (747969747).

The spelling of 205534245 in words is "two hundred five million, five hundred thirty-four thousand, two hundred forty-five".