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12253217 is a prime number
BaseRepresentation
bin101110101111…
…100000100001
3212001112020212
4232233200201
511114100332
61114343505
7206102444
oct56574041
925045225
1012253217
116a0a029
12412ab95
132700332
1418ad65b
1511208b2
hexbaf821

12253217 has 2 divisors, whose sum is σ = 12253218. Its totient is φ = 12253216.

The previous prime is 12253211. The next prime is 12253247. The reversal of 12253217 is 71235221.

It is a happy number.

12253217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10962721 + 1290496 = 3311^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 12253217 - 212 = 12249121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12253192 and 12253201.

It is not a weakly prime, because it can be changed into another prime (12253211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6126608 + 6126609.

It is an arithmetic number, because the mean of its divisors is an integer number (6126609).

Almost surely, 212253217 is an apocalyptic number.

It is an amenable number.

12253217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12253217 is an equidigital number, since it uses as much as digits as its factorization.

12253217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 23.

The square root of 12253217 is about 3500.4595412603. The cubic root of 12253217 is about 230.5419921205.

Adding to 12253217 its reverse (71235221), we get a palindrome (83488438).

The spelling of 12253217 in words is "twelve million, two hundred fifty-three thousand, two hundred seventeen".