1203744161 has 2 divisors, whose sum is σ = 1203744162. Its totient is φ = 1203744160.

The previous prime is 1203744089. The next prime is 1203744163. The reversal of 1203744161 is 1614473021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008443536 + 195300625 = 31756^2 + 13975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203744161 is a prime.

Together with 1203744163, 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 (1203744163) 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, 601872080 + 601872081.

It is an arithmetic number, because the mean of its divisors is an integer number (601872081).

Almost surely, 2^1203744161 is an apocalyptic number.

It is an amenable number.

1203744161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203744161 is an equidigital number, since it uses as much as digits as its factorization.

1203744161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1203744161 is about 34695.0163712312. The cubic root of 1203744161 is about 1063.7626341370.

The spelling of 1203744161 in words is "one billion, two hundred three million, seven hundred forty-four thousand, one hundred sixty-one".