1243441163 has 2 divisors, whose sum is σ = 1243441164. Its totient is φ = 1243441162.

The previous prime is 1243441159. The next prime is 1243441169. The reversal of 1243441163 is 3611443421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1243441163 - 2² = 1243441159 is a prime.

It is a super-2 number, since 2×1243441163² = 3092291851685585138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1243441169) 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 as a sum of consecutive naturals, namely, 621720581 + 621720582.

It is an arithmetic number, because the mean of its divisors is an integer number (621720582).

Almost surely, 2^1243441163 is an apocalyptic number.

1243441163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243441163 is an equidigital number, since it uses as much as digits as its factorization.

1243441163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 1243441163 is about 35262.4611024245. The cubic root of 1243441163 is about 1075.3299619521.

Adding to 1243441163 its reverse (3611443421), we get a palindrome (4854884584).

The spelling of 1243441163 in words is "one billion, two hundred forty-three million, four hundred forty-one thousand, one hundred sixty-three".