1161204349 has 2 divisors, whose sum is σ = 1161204350. Its totient is φ = 1161204348.

The previous prime is 1161204347. The next prime is 1161204367. The reversal of 1161204349 is 9434021611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157224324 + 3980025 = 34018^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161204349 - 2¹ = 1161204347 is a prime.

Together with 1161204347, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1161204349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161204347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580602174 + 580602175.

It is an arithmetic number, because the mean of its divisors is an integer number (580602175).

Almost surely, 2^1161204349 is an apocalyptic number.

It is an amenable number.

1161204349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161204349 is an equidigital number, since it uses as much as digits as its factorization.

1161204349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1161204349 is about 34076.4485972350. The cubic root of 1161204349 is about 1051.0810782272.

The spelling of 1161204349 in words is "one billion, one hundred sixty-one million, two hundred four thousand, three hundred forty-nine".