1685313303 has 4 divisors (see below), whose sum is σ = 2247084408. Its totient is φ = 1123542200.

The previous prime is 1685313271. The next prime is 1685313341. The reversal of 1685313303 is 3033135861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1685313303 - 2⁵ = 1685313271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685313353) 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, 280885548 + ... + 280885553.

It is an arithmetic number, because the mean of its divisors is an integer number (561771102).

Almost surely, 2^1685313303 is an apocalyptic number.

1685313303 is a deficient number, since it is larger than the sum of its proper divisors (561771105).

1685313303 is an equidigital number, since it uses as much as digits as its factorization.

1685313303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561771104.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1685313303 is about 41052.5675567315. The cubic root of 1685313303 is about 1190.0363200081.

The spelling of 1685313303 in words is "one billion, six hundred eighty-five million, three hundred thirteen thousand, three hundred three".