811148 has 24 divisors (see below), whose sum is σ = 1611120. Its totient is φ = 354240.

The previous prime is 811147. The next prime is 811157. The reversal of 811148 is 841118.

It is a super-2 number, since 2×811148² = 1315922155808, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 811148.

It is not an unprimeable number, because it can be changed into a prime (811147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578 + ... + 1398.

It is an arithmetic number, because the mean of its divisors is an integer number (67130).

2⁸¹¹¹⁴⁸ is an apocalyptic number.

It is an amenable number.

811148 is a deficient number, since it is larger than the sum of its proper divisors (799972).

811148 is a wasteful number, since it uses less digits than its factorization.

811148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its digits is 256, while the sum is 23.

The square root of 811148 is about 900.6375519597. The cubic root of 811148 is about 93.2609926977.

It can be divided in two parts, 811 and 148, that added together give a palindrome (959).

The spelling of 811148 in words is "eight hundred eleven thousand, one hundred forty-eight".