1138148 has 12 divisors (see below), whose sum is σ = 2172912. Its totient is φ = 517320.

The previous prime is 1138147. The next prime is 1138171. The reversal of 1138148 is 8418311.

It is not an unprimeable number, because it can be changed into a prime (1138141) 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 in 3 ways as a sum of consecutive naturals, for example, 12890 + ... + 12977.

It is an arithmetic number, because the mean of its divisors is an integer number (181076).

2^1138148 is an apocalyptic number.

It is an amenable number.

1138148 is a deficient number, since it is larger than the sum of its proper divisors (1034764).

1138148 is a wasteful number, since it uses less digits than its factorization.

1138148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25882 (or 25880 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 1138148 is about 1066.8401942184. The cubic root of 1138148 is about 104.4077924142.

The spelling of 1138148 in words is "one million, one hundred thirty-eight thousand, one hundred forty-eight".