1313208 has 96 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 380160.

The previous prime is 1313171. The next prime is 1313219. The reversal of 1313208 is 8023131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21498 + ... + 21558.

It is an arithmetic number, because the mean of its divisors is an integer number (42315).

2^1313208 is an apocalyptic number.

1313208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1313208 is an abundant number, since it is smaller than the sum of its proper divisors (2749032).

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

1313208 is a wasteful number, since it uses less digits than its factorization.

1313208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1313208 is about 1145.9528786124. The cubic root of 1313208 is about 109.5076619396.

Adding to 1313208 its reverse (8023131), we get a palindrome (9336339).

It can be divided in two parts, 131320 and 8, that added together give a triangular number (131328 = T₅₁₂).

The spelling of 1313208 in words is "one million, three hundred thirteen thousand, two hundred eight".