1163051563 has 4 divisors (see below), whose sum is σ = 1163562400. Its totient is φ = 1162540728.

The previous prime is 1163051543. The next prime is 1163051611. The reversal of 1163051563 is 3651503611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3651503611 = 7 ⋅521643373.

It is a cyclic number.

It is not a de Polignac number, because 1163051563 - 2²¹ = 1160954411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163051543) 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 in 3 ways as a sum of consecutive naturals, for example, 251988 + ... + 256561.

It is an arithmetic number, because the mean of its divisors is an integer number (290890600).

Almost surely, 2^1163051563 is an apocalyptic number.

1163051563 is a deficient number, since it is larger than the sum of its proper divisors (510837).

1163051563 is an equidigital number, since it uses as much as digits as its factorization.

1163051563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510836.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1163051563 is about 34103.5417955379. The cubic root of 1163051563 is about 1051.6381271966.

The spelling of 1163051563 in words is "one billion, one hundred sixty-three million, fifty-one thousand, five hundred sixty-three".