1213248 has 56 divisors (see below), whose sum is σ = 3291840. Its totient is φ = 394240.
The previous prime is 1213241. The next prime is 1213253. The reversal of 1213248 is 8423121.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213241) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13588 + ... + 13676.
21213248 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1213248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645920).
1213248 is an abundant number, since it is smaller than the sum of its proper divisors (2078592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1213248 is an equidigital number, since it uses as much as digits as its factorization.
1213248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 175 (or 165 counting only the distinct ones).
The product of its digits is 384, while the sum is 21.
The square root of 1213248 is about 1101.4753742141. The cubic root of 1213248 is about 106.6554849390.
Adding to 1213248 its reverse (8423121), we get a palindrome (9636369).
The spelling of 1213248 in words is "one million, two hundred thirteen thousand, two hundred forty-eight".
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