1313238 has 8 divisors (see below), whose sum is σ = 2626488. Its totient is φ = 437744.

The previous prime is 1313237. The next prime is 1313239. The reversal of 1313238 is 8323131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1313237) and next prime (1313239).

It is a sphenic number, since it is the product of 3 distinct primes.

1313238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313237) 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, 109431 + ... + 109442.

It is an arithmetic number, because the mean of its divisors is an integer number (328311).

2^1313238 is an apocalyptic number.

1313238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1313238 is a wasteful number, since it uses less digits than its factorization.

1313238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218878.

The product of its digits is 432, while the sum is 21.

The square root of 1313238 is about 1145.9659680811. The cubic root of 1313238 is about 109.5084958275.

Adding to 1313238 its reverse (8323131), we get a palindrome (9636369).

It can be divided in two parts, 1313 and 238, that added together give a palindrome (1551).

The spelling of 1313238 in words is "one million, three hundred thirteen thousand, two hundred thirty-eight".