1834145 has 4 divisors (see below), whose sum is σ = 2200980. Its totient is φ = 1467312.

The previous prime is 1834141. The next prime is 1834153. The reversal of 1834145 is 5414381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 559504 + 1274641 = 748^2 + 1129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1834145 - 2² = 1834141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1834141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183410 + ... + 183419.

It is an arithmetic number, because the mean of its divisors is an integer number (550245).

2^1834145 is an apocalyptic number.

It is an amenable number.

1834145 is a deficient number, since it is larger than the sum of its proper divisors (366835).

1834145 is an equidigital number, since it uses as much as digits as its factorization.

1834145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366834.

The product of its digits is 1920, while the sum is 26.

The square root of 1834145 is about 1354.3060953861. The cubic root of 1834145 is about 122.4084002166.

The spelling of 1834145 in words is "one million, eight hundred thirty-four thousand, one hundred forty-five".