1141185305 has 32 divisors (see below), whose sum is σ = 1496154240. Its totient is φ = 830592000.

The previous prime is 1141185301. The next prime is 1141185317. The reversal of 1141185305 is 5035811411.

It is not a de Polignac number, because 1141185305 - 2² = 1141185301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1141185301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1843286 + ... + 1843904.

It is an arithmetic number, because the mean of its divisors is an integer number (46754820).

Almost surely, 2^1141185305 is an apocalyptic number.

It is an amenable number.

1141185305 is a deficient number, since it is larger than the sum of its proper divisors (354968935).

1141185305 is a wasteful number, since it uses less digits than its factorization.

1141185305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 1141185305 is about 33781.4343241965. The cubic root of 1141185305 is about 1045.0058545340.

Adding to 1141185305 its reverse (5035811411), we get a palindrome (6176996716).

The spelling of 1141185305 in words is "one billion, one hundred forty-one million, one hundred eighty-five thousand, three hundred five".