1804903149 has 8 divisors (see below), whose sum is σ = 2750328640. Its totient is φ = 1031373216.

The previous prime is 1804903129. The next prime is 1804903159. The reversal of 1804903149 is 9413094081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1804903149 - 2⁸ = 1804902893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804903109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42973864 + ... + 42973905.

It is an arithmetic number, because the mean of its divisors is an integer number (343791080).

Almost surely, 2^1804903149 is an apocalyptic number.

It is an amenable number.

1804903149 is a deficient number, since it is larger than the sum of its proper divisors (945425491).

1804903149 is an equidigital number, since it uses as much as digits as its factorization.

1804903149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85947779.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1804903149 is about 42484.1517392074. The cubic root of 1804903149 is about 1217.5439141330.

The spelling of 1804903149 in words is "one billion, eight hundred four million, nine hundred three thousand, one hundred forty-nine".