1138851 has 12 divisors (see below), whose sum is σ = 1880112. Its totient is φ = 650736.

The previous prime is 1138849. The next prime is 1138853. The reversal of 1138851 is 1588311.

It is an interprime number because it is at equal distance from previous prime (1138849) and next prime (1138853).

It is not a de Polignac number, because 1138851 - 2¹ = 1138849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1138853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8976 + ... + 9101.

It is an arithmetic number, because the mean of its divisors is an integer number (156676).

2^1138851 is an apocalyptic number.

1138851 is a deficient number, since it is larger than the sum of its proper divisors (741261).

1138851 is a wasteful number, since it uses less digits than its factorization.

1138851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18090 (or 18087 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 1138851 is about 1067.1696210069. The cubic root of 1138851 is about 104.4292845140.

The spelling of 1138851 in words is "one million, one hundred thirty-eight thousand, eight hundred fifty-one".