204200145 has 12 divisors (see below), whose sum is σ = 353946996. Its totient is φ = 108906720.

The previous prime is 204200089. The next prime is 204200147. The reversal of 204200145 is 541002402.

204200145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 108493056 + 95707089 = 10416^2 + 9783^2 .

It is not a de Polignac number, because 204200145 - 2⁶ = 204200081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204200147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2268846 + ... + 2268935.

It is an arithmetic number, because the mean of its divisors is an integer number (29495583).

Almost surely, 2^204200145 is an apocalyptic number.

It is an amenable number.

204200145 is a deficient number, since it is larger than the sum of its proper divisors (149746851).

204200145 is a wasteful number, since it uses less digits than its factorization.

204200145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537792 (or 4537789 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 204200145 is about 14289.8616158450. The cubic root of 204200145 is about 588.8689861884.

Adding to 204200145 its reverse (541002402), we get a palindrome (745202547).

The spelling of 204200145 in words is "two hundred four million, two hundred thousand, one hundred forty-five".