204200146 has 4 divisors (see below), whose sum is σ = 306300222. Its totient is φ = 102100072.

The previous prime is 204200089. The next prime is 204200147. The reversal of 204200146 is 641002402.

204200146 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641002402 = 2 ⋅320501201.

It can be written as a sum of positive squares in only one way, i.e., 198387225 + 5812921 = 14085^2 + 2411^2 .

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 as a sum of consecutive naturals, namely, 51050035 + ... + 51050038.

Almost surely, 2^204200146 is an apocalyptic number.

204200146 is a deficient number, since it is larger than the sum of its proper divisors (102100076).

204200146 is a wasteful number, since it uses less digits than its factorization.

204200146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102100075.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204200146 is about 14289.8616508348. The cubic root of 204200146 is about 588.8689871496.

Adding to 204200146 its reverse (641002402), we get a palindrome (845202548).

The spelling of 204200146 in words is "two hundred four million, two hundred thousand, one hundred forty-six".