1140855 has 16 divisors (see below), whose sum is σ = 1921920. Its totient is φ = 576288.

The previous prime is 1140851. The next prime is 1140859. The reversal of 1140855 is 5580411.

It is an interprime number because it is at equal distance from previous prime (1140851) and next prime (1140859).

It is not a de Polignac number, because 1140855 - 2² = 1140851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140851) 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 15 ways as a sum of consecutive naturals, for example, 1717 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2^1140855 is an apocalyptic number.

1140855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1140855 is a deficient number, since it is larger than the sum of its proper divisors (781065).

1140855 is a wasteful number, since it uses less digits than its factorization.

1140855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1140855 is about 1068.1081405925. The cubic root of 1140855 is about 104.4905022541.

The spelling of 1140855 in words is "one million, one hundred forty thousand, eight hundred fifty-five".