1231060609 has 2 divisors, whose sum is σ = 1231060610. Its totient is φ = 1231060608.

The previous prime is 1231060601. The next prime is 1231060639. The reversal of 1231060609 is 9060601321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851005584 + 380055025 = 29172^2 + 19495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231060609 - 2³ = 1231060601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231060601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615530304 + 615530305.

It is an arithmetic number, because the mean of its divisors is an integer number (615530305).

Almost surely, 2^1231060609 is an apocalyptic number.

It is an amenable number.

1231060609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231060609 is an equidigital number, since it uses as much as digits as its factorization.

1231060609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1231060609 is about 35086.4733052497. The cubic root of 1231060609 is about 1071.7491433446.

The spelling of 1231060609 in words is "one billion, two hundred thirty-one million, sixty thousand, six hundred nine".