1805016245 has 24 divisors (see below), whose sum is σ = 2294494776. Its totient is φ = 1362943872.

The previous prime is 1805016229. The next prime is 1805016263. The reversal of 1805016245 is 5426105081.

It can be written as a sum of positive squares in 4 ways, for example, as 1054365841 + 750650404 = 32471^2 + 27398^2 .

It is not a de Polignac number, because 1805016245 - 2⁴ = 1805016229 is a prime.

It is a Duffinian number.

1805016245 is a modest number, since divided by 16245 gives 1805 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 527159 + ... + 530571.

It is an arithmetic number, because the mean of its divisors is an integer number (95603949).

Almost surely, 2^1805016245 is an apocalyptic number.

It is an amenable number.

1805016245 is a deficient number, since it is larger than the sum of its proper divisors (489478531).

1805016245 is a wasteful number, since it uses less digits than its factorization.

1805016245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3749 (or 3730 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1805016245 is about 42485.4827558779. The cubic root of 1805016245 is about 1217.5693442085.

The spelling of 1805016245 in words is "one billion, eight hundred five million, sixteen thousand, two hundred forty-five".