1339274239 has 2 divisors, whose sum is σ = 1339274240. Its totient is φ = 1339274238.
The previous prime is 1339274227. The next prime is 1339274243. The reversal of 1339274239 is 9324729331.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1339274239 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1339274195 and 1339274204.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1339274269) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669637119 + 669637120.
It is an arithmetic number, because the mean of its divisors is an integer number (669637120).
Almost surely, 21339274239 is an apocalyptic number.
1339274239 is a deficient number, since it is larger than the sum of its proper divisors (1).
1339274239 is an equidigital number, since it uses as much as digits as its factorization.
1339274239 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 244944, while the sum is 43.
The square root of 1339274239 is about 36596.0959529838. The cubic root of 1339274239 is about 1102.2746975780.
The spelling of 1339274239 in words is "one billion, three hundred thirty-nine million, two hundred seventy-four thousand, two hundred thirty-nine".
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