205230153 has 16 divisors (see below), whose sum is σ = 294174720. Its totient is φ = 126859536.

The previous prime is 205230121. The next prime is 205230211. The reversal of 205230153 is 351032502.

It is not a de Polignac number, because 205230153 - 2⁵ = 205230121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205230253) 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, 35625 + ... + 40982.

It is an arithmetic number, because the mean of its divisors is an integer number (18385920).

Almost surely, 2^205230153 is an apocalyptic number.

It is an amenable number.

205230153 is a deficient number, since it is larger than the sum of its proper divisors (88944567).

205230153 is a wasteful number, since it uses less digits than its factorization.

205230153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76676.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 205230153 is about 14325.8561000730. The cubic root of 205230153 is about 589.8574327558.

Adding to 205230153 its reverse (351032502), we get a palindrome (556262655).

It can be divided in two parts, 2052 and 30153, that multiplied together give a square (61873956 = 7866²).

The spelling of 205230153 in words is "two hundred five million, two hundred thirty thousand, one hundred fifty-three".