8111144 has 8 divisors (see below), whose sum is σ = 15208410. Its totient is φ = 4055568.

The previous prime is 8111123. The next prime is 8111149. The reversal of 8111144 is 4411118.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7672900 + 438244 = 2770^2 + 662^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (8111149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506939 + ... + 506954.

Almost surely, 2^8111144 is an apocalyptic number.

It is an amenable number.

8111144 is a deficient number, since it is larger than the sum of its proper divisors (7097266).

8111144 is a wasteful number, since it uses less digits than its factorization.

8111144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013899 (or 1013895 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

The square root of 8111144 is about 2848.0070224633. The cubic root of 8111144 is about 200.9219435700.

It can be divided in two parts, 811114 and 4, that added together give a palindrome (811118).

The spelling of 8111144 in words is "eight million, one hundred eleven thousand, one hundred forty-four".