1803682313 has 2 divisors, whose sum is σ = 1803682314. Its totient is φ = 1803682312.

The previous prime is 1803682271. The next prime is 1803682339. The reversal of 1803682313 is 3132863081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1801408249 + 2274064 = 42443^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 1803682313 - 2⁶ = 1803682249 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 (1803682513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901841156 + 901841157.

It is an arithmetic number, because the mean of its divisors is an integer number (901841157).

Almost surely, 2^1803682313 is an apocalyptic number.

It is an amenable number.

1803682313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1803682313 is an equidigital number, since it uses as much as digits as its factorization.

1803682313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1803682313 is about 42469.7811743833. The cubic root of 1803682313 is about 1217.2693367580.

The spelling of 1803682313 in words is "one billion, eight hundred three million, six hundred eighty-two thousand, three hundred thirteen".