1242124067 has 2 divisors, whose sum is σ = 1242124068. Its totient is φ = 1242124066.
The previous prime is 1242124021. The next prime is 1242124097. The reversal of 1242124067 is 7604212421.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1242124067 - 28 = 1242123811 is a prime.
It is not a weakly prime, because it can be changed into another prime (1242124007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621062033 + 621062034.
It is an arithmetic number, because the mean of its divisors is an integer number (621062034).
Almost surely, 21242124067 is an apocalyptic number.
1242124067 is a deficient number, since it is larger than the sum of its proper divisors (1).
1242124067 is an equidigital number, since it uses as much as digits as its factorization.
1242124067 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5376, while the sum is 29.
The square root of 1242124067 is about 35243.7805435229. The cubic root of 1242124067 is about 1074.9501522226.
Adding to 1242124067 its reverse (7604212421), we get a palindrome (8846336488).
The spelling of 1242124067 in words is "one billion, two hundred forty-two million, one hundred twenty-four thousand, sixty-seven".
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