1804995499 has 2 divisors, whose sum is σ = 1804995500. Its totient is φ = 1804995498.

The previous prime is 1804995487. The next prime is 1804995503. The reversal of 1804995499 is 9945994081.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9945994081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1804995499 - 2⁷ = 1804995371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1804992499) 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 as a sum of consecutive naturals, namely, 902497749 + 902497750.

It is an arithmetic number, because the mean of its divisors is an integer number (902497750).

Almost surely, 2^1804995499 is an apocalyptic number.

1804995499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1804995499 is an equidigital number, since it uses as much as digits as its factorization.

1804995499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The square root of 1804995499 is about 42485.2386011895. The cubic root of 1804995499 is about 1217.5646794693.

The spelling of 1804995499 in words is "one billion, eight hundred four million, nine hundred ninety-five thousand, four hundred ninety-nine".