1161255299 has 2 divisors, whose sum is σ = 1161255300. Its totient is φ = 1161255298.

The previous prime is 1161255247. The next prime is 1161255343. The reversal of 1161255299 is 9925521611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161255299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1161255239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580627649 + 580627650.

It is an arithmetic number, because the mean of its divisors is an integer number (580627650).

Almost surely, 2^1161255299 is an apocalyptic number.

1161255299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161255299 is an equidigital number, since it uses as much as digits as its factorization.

1161255299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 41.

The square root of 1161255299 is about 34077.1961728074. The cubic root of 1161255299 is about 1051.0964507147.

The spelling of 1161255299 in words is "one billion, one hundred sixty-one million, two hundred fifty-five thousand, two hundred ninety-nine".