1805098601 has 2 divisors, whose sum is σ = 1805098602. Its totient is φ = 1805098600.

The previous prime is 1805098579. The next prime is 1805098621. The reversal of 1805098601 is 1068905081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1802851600 + 2247001 = 42460^2 + 1499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1805098601 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1805098621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902549300 + 902549301.

It is an arithmetic number, because the mean of its divisors is an integer number (902549301).

Almost surely, 2^1805098601 is an apocalyptic number.

It is an amenable number.

1805098601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1805098601 is an equidigital number, since it uses as much as digits as its factorization.

1805098601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 1805098601 is about 42486.4519700104. The cubic root of 1805098601 is about 1217.5878616072.

The spelling of 1805098601 in words is "one billion, eight hundred five million, ninety-eight thousand, six hundred one".