204195049 has 2 divisors, whose sum is σ = 204195050. Its totient is φ = 204195048.

The previous prime is 204195011. The next prime is 204195053. The reversal of 204195049 is 940591402.

204195049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115175824 + 89019225 = 10732^2 + 9435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204195049 is a prime.

It is a super-2 number, since 2×204195049² = 83391236072224802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (204195149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102097524 + 102097525.

It is an arithmetic number, because the mean of its divisors is an integer number (102097525).

Almost surely, 2^204195049 is an apocalyptic number.

It is an amenable number.

204195049 is a deficient number, since it is larger than the sum of its proper divisors (1).

204195049 is an equidigital number, since it uses as much as digits as its factorization.

204195049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 204195049 is about 14289.6833064977. The cubic root of 204195049 is about 588.8640875609.

The spelling of 204195049 in words is "two hundred four million, one hundred ninety-five thousand, forty-nine".