213434017 has 2 divisors, whose sum is σ = 213434018. Its totient is φ = 213434016.

The previous prime is 213433999. The next prime is 213434029. The reversal of 213434017 is 710434312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158659216 + 54774801 = 12596^2 + 7401^2 .

It is a cyclic number.

It is not a de Polignac number, because 213434017 - 2⁷ = 213433889 is a prime.

It is a super-2 number, since 2×213434017² = 91108159225512578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213433982 and 213434000.

It is not a weakly prime, because it can be changed into another prime (213434057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106717008 + 106717009.

It is an arithmetic number, because the mean of its divisors is an integer number (106717009).

Almost surely, 2^213434017 is an apocalyptic number.

It is an amenable number.

213434017 is a deficient number, since it is larger than the sum of its proper divisors (1).

213434017 is an equidigital number, since it uses as much as digits as its factorization.

213434017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 213434017 is about 14609.3811299452. The cubic root of 213434017 is about 597.6146189780.

Adding to 213434017 its reverse (710434312), we get a palindrome (923868329).

The spelling of 213434017 in words is "two hundred thirteen million, four hundred thirty-four thousand, seventeen".