1204666361 has 2 divisors, whose sum is σ = 1204666362. Its totient is φ = 1204666360.

The previous prime is 1204666343. The next prime is 1204666363. The reversal of 1204666361 is 1636664021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1178205625 + 26460736 = 34325^2 + 5144^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204666361 - 2²² = 1200472057 is a prime.

Together with 1204666363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1204666363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602333180 + 602333181.

It is an arithmetic number, because the mean of its divisors is an integer number (602333181).

Almost surely, 2^1204666361 is an apocalyptic number.

It is an amenable number.

1204666361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204666361 is an equidigital number, since it uses as much as digits as its factorization.

1204666361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1204666361 is about 34708.3039199555. The cubic root of 1204666361 is about 1064.0342177291.

The spelling of 1204666361 in words is "one billion, two hundred four million, six hundred sixty-six thousand, three hundred sixty-one".