1203116609 has 2 divisors, whose sum is σ = 1203116610. Its totient is φ = 1203116608.

The previous prime is 1203116581. The next prime is 1203116647. The reversal of 1203116609 is 9066113021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1176284209 + 26832400 = 34297^2 + 5180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203116609 - 2⁸ = 1203116353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203116659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601558304 + 601558305.

It is an arithmetic number, because the mean of its divisors is an integer number (601558305).

Almost surely, 2^1203116609 is an apocalyptic number.

It is an amenable number.

1203116609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203116609 is an equidigital number, since it uses as much as digits as its factorization.

1203116609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1203116609 is about 34685.9713573081. The cubic root of 1203116609 is about 1063.5777436838.

The spelling of 1203116609 in words is "one billion, two hundred three million, one hundred sixteen thousand, six hundred nine".