1348221 has 32 divisors (see below), whose sum is σ = 2252800. Its totient is φ = 699840.
The previous prime is 1348211. The next prime is 1348223. The reversal of 1348221 is 1228431.
It is not a de Polignac number, because 1348221 - 26 = 1348157 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1348223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12315 + ... + 12423.
It is an arithmetic number, because the mean of its divisors is an integer number (70400).
21348221 is an apocalyptic number.
It is an amenable number.
1348221 is a deficient number, since it is larger than the sum of its proper divisors (904579).
1348221 is a wasteful number, since it uses less digits than its factorization.
1348221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 169.
The product of its digits is 384, while the sum is 21.
The square root of 1348221 is about 1161.1291917784. The cubic root of 1348221 is about 110.4723762703.
The spelling of 1348221 in words is "one million, three hundred forty-eight thousand, two hundred twenty-one".
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