213441427 has 2 divisors, whose sum is σ = 213441428. Its totient is φ = 213441426.

The previous prime is 213441401. The next prime is 213441433. The reversal of 213441427 is 724144312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213441427 - 2¹⁵ = 213408659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213441395 and 213441404.

It is not a weakly prime, because it can be changed into another prime (213441227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106720713 + 106720714.

It is an arithmetic number, because the mean of its divisors is an integer number (106720714).

Almost surely, 2^213441427 is an apocalyptic number.

213441427 is a deficient number, since it is larger than the sum of its proper divisors (1).

213441427 is an equidigital number, since it uses as much as digits as its factorization.

213441427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 213441427 is about 14609.6347319158. The cubic root of 213441427 is about 597.6215348907.

Adding to 213441427 its reverse (724144312), we get a palindrome (937585739).

The spelling of 213441427 in words is "two hundred thirteen million, four hundred forty-one thousand, four hundred twenty-seven".