1230379 has 2 divisors, whose sum is σ = 1230380. Its totient is φ = 1230378.
The previous prime is 1230377. The next prime is 1230391. The reversal of 1230379 is 9730321.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1230379 - 21 = 1230377 is a prime.
Together with 1230377, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (1230371) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615189 + 615190.
It is an arithmetic number, because the mean of its divisors is an integer number (615190).
21230379 is an apocalyptic number.
1230379 is a deficient number, since it is larger than the sum of its proper divisors (1).
1230379 is an equidigital number, since it uses as much as digits as its factorization.
1230379 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1134, while the sum is 25.
The square root of 1230379 is about 1109.2245038765. The cubic root of 1230379 is about 107.1551306152.
The spelling of 1230379 in words is "one million, two hundred thirty thousand, three hundred seventy-nine".
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