1141165563 has 8 divisors (see below), whose sum is σ = 1524022608. Its totient is φ = 759542784.

The previous prime is 1141165549. The next prime is 1141165591. The reversal of 1141165563 is 3655611411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1141165563 - 2¹² = 1141161467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1141165513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306406 + ... + 310107.

It is an arithmetic number, because the mean of its divisors is an integer number (190502826).

Almost surely, 2^1141165563 is an apocalyptic number.

1141165563 is a deficient number, since it is larger than the sum of its proper divisors (382857045).

1141165563 is an equidigital number, since it uses as much as digits as its factorization.

1141165563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617133.

The product of its digits is 10800, while the sum is 33.

The square root of 1141165563 is about 33781.1421210118. The cubic root of 1141165563 is about 1044.9998284532. Note that the first 3 decimals are identical.

Adding to 1141165563 its reverse (3655611411), we get a palindrome (4796776974).

The spelling of 1141165563 in words is "one billion, one hundred forty-one million, one hundred sixty-five thousand, five hundred sixty-three".