213019 has 2 divisors, whose sum is σ = 213020. Its totient is φ = 213018.
The previous prime is 212999. The next prime is 213023. The reversal of 213019 is 910312.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 213019 - 25 = 212987 is a prime.
It is a super-2 number, since 2×2130192 = 90754188722, which contains 22 as substring.
It is a nialpdrome in base 6.
It is a junction number, because it is equal to n+sod(n) for n = 212993 and 213011.
It is not a weakly prime, because it can be changed into another prime (213029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106509 + 106510.
It is an arithmetic number, because the mean of its divisors is an integer number (106510).
2213019 is an apocalyptic number.
213019 is a deficient number, since it is larger than the sum of its proper divisors (1).
213019 is an equidigital number, since it uses as much as digits as its factorization.
213019 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 54, while the sum is 16.
The square root of 213019 is about 461.5398141006. The cubic root of 213019 is about 59.7227018851.
It can be divided in two parts, 2130 and 19, that multiplied together give a triangular number (40470 = T284).
The spelling of 213019 in words is "two hundred thirteen thousand, nineteen".
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