1185285349 has 2 divisors, whose sum is σ = 1185285350. Its totient is φ = 1185285348.

The previous prime is 1185285347. The next prime is 1185285371. The reversal of 1185285349 is 9435825811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627853249 + 557432100 = 25057^2 + 23610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185285349 - 2¹ = 1185285347 is a prime.

Together with 1185285347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1185285299 and 1185285308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1185285347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592642674 + 592642675.

It is an arithmetic number, because the mean of its divisors is an integer number (592642675).

Almost surely, 2^1185285349 is an apocalyptic number.

It is an amenable number.

1185285349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185285349 is an equidigital number, since it uses as much as digits as its factorization.

1185285349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The square root of 1185285349 is about 34427.9733501698. The cubic root of 1185285349 is about 1058.2971796662.

The spelling of 1185285349 in words is "one billion, one hundred eighty-five million, two hundred eighty-five thousand, three hundred forty-nine".