1146831 has 16 divisors (see below), whose sum is σ = 1768704. Its totient is φ = 647424.

The previous prime is 1146829. The next prime is 1146833. The reversal of 1146831 is 1386411.

It is an interprime number because it is at equal distance from previous prime (1146829) and next prime (1146833).

It is not a de Polignac number, because 1146831 - 2¹ = 1146829 is a prime.

It is a super-2 number, since 2×1146831² = 2630442685122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1756 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (110544).

2^1146831 is an apocalyptic number.

1146831 is a deficient number, since it is larger than the sum of its proper divisors (621873).

1146831 is an equidigital number, since it uses as much as digits as its factorization.

1146831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670.

The product of its digits is 576, while the sum is 24.

The square root of 1146831 is about 1070.9019562967. The cubic root of 1146831 is about 104.6726311845.

Adding to 1146831 its sum of digits (24), we get a triangular number (1146855 = T₁₅₁₄).

The spelling of 1146831 in words is "one million, one hundred forty-six thousand, eight hundred thirty-one".