1803134 has 4 divisors (see below), whose sum is σ = 2704704. Its totient is φ = 901566.

The previous prime is 1803127. The next prime is 1803149. The reversal of 1803134 is 4313081.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 450782 + ... + 450785.

It is an arithmetic number, because the mean of its divisors is an integer number (676176).

2^1803134 is an apocalyptic number.

1803134 is a deficient number, since it is larger than the sum of its proper divisors (901570).

1803134 is an equidigital number, since it uses as much as digits as its factorization.

1803134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901569.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1803134 is about 1342.8082513896. The cubic root of 1803134 is about 121.7145975742.

The spelling of 1803134 in words is "one million, eight hundred three thousand, one hundred thirty-four".