1011444163 has 4 divisors (see below), whose sum is σ = 1014675928. Its totient is φ = 1008212400.

The previous prime is 1011444097. The next prime is 1011444167. The reversal of 1011444163 is 3614441101.

It is a happy number.

1011444163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011444163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011444167) 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, 1615413 + ... + 1616038.

It is an arithmetic number, because the mean of its divisors is an integer number (253668982).

Almost surely, 2^1011444163 is an apocalyptic number.

1011444163 is a deficient number, since it is larger than the sum of its proper divisors (3231765).

1011444163 is an equidigital number, since it uses as much as digits as its factorization.

1011444163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231764.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1011444163 is about 31803.2099480540. The cubic root of 1011444163 is about 1003.8002607240.

Adding to 1011444163 its reverse (3614441101), we get a palindrome (4625885264).

The spelling of 1011444163 in words is "one billion, eleven million, four hundred forty-four thousand, one hundred sixty-three".