1313436 has 12 divisors (see below), whose sum is σ = 3064712. Its totient is φ = 437808.

The previous prime is 1313423. The next prime is 1313443. The reversal of 1313436 is 6343131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1313436² = 3450228252192, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54715 + ... + 54738.

2^1313436 is an apocalyptic number.

It is an amenable number.

1313436 is an abundant number, since it is smaller than the sum of its proper divisors (1751276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313436 is a wasteful number, since it uses less digits than its factorization.

1313436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109460 (or 109458 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 1313436 is about 1146.0523548250. The cubic root of 1313436 is about 109.5139991693.

Adding to 1313436 its reverse (6343131), we get a palindrome (7656567).

The spelling of 1313436 in words is "one million, three hundred thirteen thousand, four hundred thirty-six".