1313636 has 12 divisors (see below), whose sum is σ = 2307900. Its totient is φ = 654240.

The previous prime is 1313633. The next prime is 1313651. The reversal of 1313636 is 6363131.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 422500 = 944^2 + 650^2 .

It is not an unprimeable number, because it can be changed into a prime (1313633) 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, 926 + ... + 1866.

It is an arithmetic number, because the mean of its divisors is an integer number (192325).

2^1313636 is an apocalyptic number.

It is an amenable number.

1313636 is a deficient number, since it is larger than the sum of its proper divisors (994264).

1313636 is a wasteful number, since it uses less digits than its factorization.

1313636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1292 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

The square root of 1313636 is about 1146.1396075522. The cubic root of 1313636 is about 109.5195575389.

Adding to 1313636 its reverse (6363131), we get a palindrome (7676767).

The spelling of 1313636 in words is "one million, three hundred thirteen thousand, six hundred thirty-six".