1804895141 has 4 divisors (see below), whose sum is σ = 2062737312. Its totient is φ = 1547052972.

The previous prime is 1804895107. The next prime is 1804895173. The reversal of 1804895141 is 1415984081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1415984081 = 5003 ⋅283027.

It is a cyclic number.

It is not a de Polignac number, because 1804895141 - 2¹⁸ = 1804632997 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 (1804895441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128921075 + ... + 128921088.

It is an arithmetic number, because the mean of its divisors is an integer number (515684328).

Almost surely, 2^1804895141 is an apocalyptic number.

It is an amenable number.

1804895141 is a deficient number, since it is larger than the sum of its proper divisors (257842171).

1804895141 is an equidigital number, since it uses as much as digits as its factorization.

1804895141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257842170.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 1804895141 is about 42484.0574921935. The cubic root of 1804895141 is about 1217.5421134627.

The spelling of 1804895141 in words is "one billion, eight hundred four million, eight hundred ninety-five thousand, one hundred forty-one".