1140831 has 32 divisors (see below), whose sum is σ = 1843200. Its totient is φ = 695520.

The previous prime is 1140803. The next prime is 1140847. The reversal of 1140831 is 1380411.

1140831 = T₁₆₀ + T₁₆₁ + ... + T₂₂₁.

It is not a de Polignac number, because 1140831 - 2⁹ = 1140319 is a prime.

It is a super-2 number, since 2×1140831² = 2602990741122, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 24250 + ... + 24296.

It is an arithmetic number, because the mean of its divisors is an integer number (57600).

2^1140831 is an apocalyptic number.

1140831 is a deficient number, since it is larger than the sum of its proper divisors (702369).

1140831 is a wasteful number, since it uses less digits than its factorization.

1140831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1140831 is about 1068.0969057160. The cubic root of 1140831 is about 104.4897695318.

The spelling of 1140831 in words is "one million, one hundred forty thousand, eight hundred thirty-one".