1842129 has 8 divisors (see below), whose sum is σ = 2729120. Its totient is φ = 1228068.

The previous prime is 1842101. The next prime is 1842131. The reversal of 1842129 is 9212481.

It is not a de Polignac number, because 1842129 - 2⁵ = 1842097 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: 68227 = 1842129 / (1 + 8 + 4 + 2 + 1 + 2 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1842199) 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 7 ways as a sum of consecutive naturals, for example, 34087 + ... + 34140.

It is an arithmetic number, because the mean of its divisors is an integer number (341140).

2^1842129 is an apocalyptic number.

It is an amenable number.

1842129 is a deficient number, since it is larger than the sum of its proper divisors (886991).

1842129 is an equidigital number, since it uses as much as digits as its factorization.

1842129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68236 (or 68230 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1842129 is about 1357.2505295634. The cubic root of 1842129 is about 122.5857569719.

The spelling of 1842129 in words is "one million, eight hundred forty-two thousand, one hundred twenty-nine".