1204452779 has 2 divisors, whose sum is σ = 1204452780. Its totient is φ = 1204452778.

The previous prime is 1204452773. The next prime is 1204452817. The reversal of 1204452779 is 9772544021.

It is a weak prime.

It is an emirp because it is prime and its reverse (9772544021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1204452779 - 2⁴ = 1204452763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204452773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602226389 + 602226390.

It is an arithmetic number, because the mean of its divisors is an integer number (602226390).

Almost surely, 2^1204452779 is an apocalyptic number.

1204452779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204452779 is an equidigital number, since it uses as much as digits as its factorization.

1204452779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 1204452779 is about 34705.2269694350. The cubic root of 1204452779 is about 1063.9713311641.

The spelling of 1204452779 in words is "one billion, two hundred four million, four hundred fifty-two thousand, seven hundred seventy-nine".