1155567349 has 2 divisors, whose sum is σ = 1155567350. Its totient is φ = 1155567348.

The previous prime is 1155567323. The next prime is 1155567359. The reversal of 1155567349 is 9437655511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1027651249 + 127916100 = 32057^2 + 11310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155567349 - 2⁷ = 1155567221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1155567299 and 1155567308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155567319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577783674 + 577783675.

It is an arithmetic number, because the mean of its divisors is an integer number (577783675).

Almost surely, 2^1155567349 is an apocalyptic number.

It is an amenable number.

1155567349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155567349 is an equidigital number, since it uses as much as digits as its factorization.

1155567349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 46.

The square root of 1155567349 is about 33993.6368898651. The cubic root of 1155567349 is about 1049.3775143319.

The spelling of 1155567349 in words is "one billion, one hundred fifty-five million, five hundred sixty-seven thousand, three hundred forty-nine".