213242027 has 2 divisors, whose sum is σ = 213242028. Its totient is φ = 213242026.

The previous prime is 213242011. The next prime is 213242077. The reversal of 213242027 is 720242312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213242027 - 2⁴ = 213242011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213241993 and 213242011.

It is not a weakly prime, because it can be changed into another prime (213242077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106621013 + 106621014.

It is an arithmetic number, because the mean of its divisors is an integer number (106621014).

Almost surely, 2^213242027 is an apocalyptic number.

213242027 is a deficient number, since it is larger than the sum of its proper divisors (1).

213242027 is an equidigital number, since it uses as much as digits as its factorization.

213242027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 213242027 is about 14602.8088736380. The cubic root of 213242027 is about 597.4353747439.

Adding to 213242027 its reverse (720242312), we get a palindrome (933484339).

The spelling of 213242027 in words is "two hundred thirteen million, two hundred forty-two thousand, twenty-seven".