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1216067 is a prime number
BaseRepresentation
bin100101000111001000011
32021210010112
410220321003
5302403232
642021535
713223246
oct4507103
92253115
101216067
11760716
124a78ab
13337688
1423925d
151904b2
hex128e43

1216067 has 2 divisors, whose sum is σ = 1216068. Its totient is φ = 1216066.

The previous prime is 1216043. The next prime is 1216069. The reversal of 1216067 is 7606121.

It is a strong prime.

It is an emirp because it is prime and its reverse (7606121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1216067 - 214 = 1199683 is a prime.

Together with 1216069, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p94064 and since 1216067 and 94064 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1216069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608033 + 608034.

It is an arithmetic number, because the mean of its divisors is an integer number (608034).

21216067 is an apocalyptic number.

1216067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1216067 is an equidigital number, since it uses as much as digits as its factorization.

1216067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1216067 is about 1102.7542790667. The cubic root of 1216067 is about 106.7380262518.

The spelling of 1216067 in words is "one million, two hundred sixteen thousand, sixty-seven".