204142349 has 2 divisors, whose sum is σ = 204142350. Its totient is φ = 204142348.

The previous prime is 204142331. The next prime is 204142361. The reversal of 204142349 is 943241402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177289225 + 26853124 = 13315^2 + 5182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204142349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204142849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102071174 + 102071175.

It is an arithmetic number, because the mean of its divisors is an integer number (102071175).

Almost surely, 2^204142349 is an apocalyptic number.

It is an amenable number.

204142349 is a deficient number, since it is larger than the sum of its proper divisors (1).

204142349 is an equidigital number, since it uses as much as digits as its factorization.

204142349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 204142349 is about 14287.8391998230. The cubic root of 204142349 is about 588.8134238977.

The spelling of 204142349 in words is "two hundred four million, one hundred forty-two thousand, three hundred forty-nine".