1163545211 has 6 divisors (see below), whose sum is σ = 1177739700. Its totient is φ = 1149519788.

The previous prime is 1163545193. The next prime is 1163545219. The reversal of 1163545211 is 1125453611.

It is not a de Polignac number, because 1163545211 - 2¹⁸ = 1163283067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163545219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77561 + ... + 91338.

It is an arithmetic number, because the mean of its divisors is an integer number (196289950).

Almost surely, 2^1163545211 is an apocalyptic number.

1163545211 is a deficient number, since it is larger than the sum of its proper divisors (14194489).

1163545211 is an frugal number, since it uses more digits than its factorization.

1163545211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169065 (or 168982 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 1163545211 is about 34110.7785164748. The cubic root of 1163545211 is about 1051.7868926352.

Adding to 1163545211 its reverse (1125453611), we get a palindrome (2288998822).

The spelling of 1163545211 in words is "one billion, one hundred sixty-three million, five hundred forty-five thousand, two hundred eleven".