1131598099 has 2 divisors, whose sum is σ = 1131598100. Its totient is φ = 1131598098.

The previous prime is 1131598079. The next prime is 1131598123. The reversal of 1131598099 is 9908951311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131598099 - 2¹⁷ = 1131467027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131598049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565799049 + 565799050.

It is an arithmetic number, because the mean of its divisors is an integer number (565799050).

Almost surely, 2^1131598099 is an apocalyptic number.

1131598099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131598099 is an equidigital number, since it uses as much as digits as its factorization.

1131598099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 46.

The square root of 1131598099 is about 33639.2345186391. The cubic root of 1131598099 is about 1042.0712233175.

The spelling of 1131598099 in words is "one billion, one hundred thirty-one million, five hundred ninety-eight thousand, ninety-nine".