204122797 has 2 divisors, whose sum is σ = 204122798. Its totient is φ = 204122796.

The previous prime is 204122777. The next prime is 204122843. The reversal of 204122797 is 797221402.

It is a happy number.

204122797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192487876 + 11634921 = 13874^2 + 3411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204122797 is a prime.

It is a super-2 number, since 2×204122797² = 83332232510206418, which contains 22 as substring.

It is equal to p_11294584 and since 204122797 and 11294584 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204122707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102061398 + 102061399.

It is an arithmetic number, because the mean of its divisors is an integer number (102061399).

Almost surely, 2^204122797 is an apocalyptic number.

It is an amenable number.

204122797 is a deficient number, since it is larger than the sum of its proper divisors (1).

204122797 is an equidigital number, since it uses as much as digits as its factorization.

204122797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 204122797 is about 14287.1549652126. The cubic root of 204122797 is about 588.7946251728.

The spelling of 204122797 in words is "two hundred four million, one hundred twenty-two thousand, seven hundred ninety-seven".