1828143 has 8 divisors (see below), whose sum is σ = 2708400. Its totient is φ = 1218744.

The previous prime is 1828121. The next prime is 1828153. The reversal of 1828143 is 3418281.

It is not a de Polignac number, because 1828143 - 2¹² = 1824047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 67709 = 1828143 / (1 + 8 + 2 + 8 + 1 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33828 + ... + 33881.

It is an arithmetic number, because the mean of its divisors is an integer number (338550).

2^1828143 is an apocalyptic number.

1828143 is a deficient number, since it is larger than the sum of its proper divisors (880257).

1828143 is an equidigital number, since it uses as much as digits as its factorization.

1828143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67718 (or 67712 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1828143 is about 1352.0883846850. The cubic root of 1828143 is about 122.2747324720.

The spelling of 1828143 in words is "one million, eight hundred twenty-eight thousand, one hundred forty-three".