205233345 has 80 divisors (see below), whose sum is σ = 392040000. Its totient is φ = 102425472.

The previous prime is 205233317. The next prime is 205233359. The reversal of 205233345 is 543332502.

205233345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205233345 - 2⁸ = 205233089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1146466 + ... + 1146644.

It is an arithmetic number, because the mean of its divisors is an integer number (4900500).

Almost surely, 2^205233345 is an apocalyptic number.

It is an amenable number.

205233345 is a deficient number, since it is larger than the sum of its proper divisors (186806655).

205233345 is a wasteful number, since it uses less digits than its factorization.

205233345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 205233345 is about 14325.9675065944. The cubic root of 205233345 is about 589.8604908106.

Adding to 205233345 its reverse (543332502), we get a palindrome (748565847).

The spelling of 205233345 in words is "two hundred five million, two hundred thirty-three thousand, three hundred forty-five".