1013209289 has 2 divisors, whose sum is σ = 1013209290. Its totient is φ = 1013209288.

The previous prime is 1013209283. The next prime is 1013209313. The reversal of 1013209289 is 9829023101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005397264 + 7812025 = 31708^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013209289 - 2²⁰ = 1012160713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1013209283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506604644 + 506604645.

It is an arithmetic number, because the mean of its divisors is an integer number (506604645).

Almost surely, 2^1013209289 is an apocalyptic number.

It is an amenable number.

1013209289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013209289 is an equidigital number, since it uses as much as digits as its factorization.

1013209289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1013209289 is about 31830.9486035211. The cubic root of 1013209289 is about 1004.3838501084.

The spelling of 1013209289 in words is "one billion, thirteen million, two hundred nine thousand, two hundred eighty-nine".