1211163 has 4 divisors (see below), whose sum is σ = 1614888. Its totient is φ = 807440.

The previous prime is 1211141. The next prime is 1211167. The reversal of 1211163 is 3611121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1211163 - 2¹⁷ = 1080091 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1211167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201858 + ... + 201863.

It is an arithmetic number, because the mean of its divisors is an integer number (403722).

2^1211163 is an apocalyptic number.

1211163 is a deficient number, since it is larger than the sum of its proper divisors (403725).

1211163 is an equidigital number, since it uses as much as digits as its factorization.

1211163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403724.

The product of its digits is 36, while the sum is 15.

The square root of 1211163 is about 1100.5285093990. The cubic root of 1211163 is about 106.5943531136.

Adding to 1211163 its reverse (3611121), we get a palindrome (4822284).

It can be divided in two parts, 12 and 11163, that multiplied together give a square (133956 = 366²).

The spelling of 1211163 in words is "one million, two hundred eleven thousand, one hundred sixty-three".