1313783 has 6 divisors (see below), whose sum is σ = 1376664. Its totient is φ = 1251404.

The previous prime is 1313771. The next prime is 1313797. The reversal of 1313783 is 3873131.

It is not a de Polignac number, because 1313783 - 2¹⁴ = 1297399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5378 + ... + 5616.

It is an arithmetic number, because the mean of its divisors is an integer number (229444).

2^1313783 is an apocalyptic number.

1313783 is a deficient number, since it is larger than the sum of its proper divisors (62881).

1313783 is an frugal number, since it uses more digits than its factorization.

1313783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 262 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 1313783 is about 1146.2037340717. The cubic root of 1313783 is about 109.5236425808.

The spelling of 1313783 in words is "one million, three hundred thirteen thousand, seven hundred eighty-three".